‘Tis the season for year-end Top 10 lists celebrating and lamenting all things in the world of life, and the automotive industry is no exception. Ward’s Automotive has announced its list of the 10 best engines for 2014, and it’s a turbodiesel-intercooled festival of power this year.

TUV Nord, a safety testing and certification agency, has issued a report commissioned by an environmental group that says that modern engines that use gasoline direct injection (GDI) of fuel emit more small particles in their exhausts than modern diesel engines. Particulates raise concerns over possibly causing cancer. GDI has proliferated as a means of increasing power, improving fuel efficiency and lowering CO2 emmissions but TUV Nord says that GDI engines put out 1,000 times more harmful particles than traditional gasoline engines and 10 times more than the latest diesels. The study is based on a sample size of three cars, a Ford Focus with a 1 liter EcoBoost engine, a Renault Megane with a 1.2 liter Energy TCe, and a Hyundai i40 with a 1.6 liter GDI engine.

“The cost of a filter to eliminate particle emissions from GDI cars is low (around EUR50 [~$68 US]), with no loss in fuel efficiency and a big societal benefit. Despite this, carmakers are delaying fitting filters on GDI cars,” the Transport & Environment advocacy group based in Brussels said in a summary of the report.

Though the Juke is marketed as a fun-to-drive vehicle for members of Generation Why, Nissan knows it could do better to make the crossover a performance monster, too. Enter the Juke NISMO RS.

BMW may have given the world a fair glimpse at the 4 Series convertible coupe last month, but the Germans have opted to make the LA Auto Show the perfect stage for the ultimate sunning machine’s public debut.

Mazda3 Skyactiv-CNG Concept

Last week, Mazda CEO Masamichi Kogai said that the company had no plans for a production Wankel rotary anytime in the near future, though the company most identified with the engine that goes “hmmmm” will continue to do research on rotaries. Now, at the Tokyo Motor Show, Mazda is showing that its future powertrain plans include diesel, natural gas and hybrid drives.

Remember this piece from the Honda Summer 2008 Hydrogen Collection? It was supposed to point the way to future of green fuel technology before the Tesla brought plug-in sex appeal down the ramp with their Roadster and, later on, the S, as well as the trend of compliance EVs from Chevrolet, Volkswagen and Kia.

But with sales of plug-in hybrids advancing far slower than originally expected regulators are taking another look at alternative ZEV powertrains.

The contrarian in me loves it when conventional wisdom is proven to be not so wise. For decades, even before the first oil crisis of the 1970s, motorists have been told that making sure that your air filter is clean is one of the ways that you can improve your fuel economy. It’s intuitive to think that a clogged air filter will affect the way an engine “breathes”, how efficiently it can get gases in and out of the combustion chamber and how that might decrease fuel economy. That may have made sense decades ago, however it turns out that two different studies, one on gasoline engines and the other on diesels, performed by a team at the Oak Ridge National Laboratory, show that the fuel economy of modern, digitally controlled fuel injected engines isn’t significantly affected by the state of their air cleaners’ cleanliness. What made sense in the era or carburetors may no longer be applicable today. Apparently the engines’ ECUs working to keep emissions in spec are capable of leaning out the fuel mixture to account for a dirty air filter restricting airflow into the engine, resulting in insignificant drops in fuel economy. Though dirty air filters didn’t materially affect fuel economy in the modern cars, they did experience a decrease in acceleration performance so it’s still a good idea to replace a dirty air filter.

Abstracts of the studies after the jump.

For anyone who admires the Volkswagen XL1 attributes but desires a less Teutonic, more cute vehicle, the fun will be doubled when the Twin up! debuts at both the LA and Tokyo auto shows later this month.

The Times of India and the Hindustan Times are reporting that a panel appointed by the Indian government to look into General Motors’ recall last summer of 114,000 Chevrolet Tavera multiple use vehicles says that the company violated testing regulations, according to a government official who has seen the report. The recall came after a surprise check by the Automotive Research Association of India, an industry group that works with India’s Ministry of Transportation, found that the Tavera’s production diesel engines were not consistent with those that GM had supplied for testing.

Chevrolet will not be the sole brand in GM’s stable to offer a diesel passenger car. According to reports, Buick is next up for a diesel engine. It’s not known which Buick would get an oil burner but the likely candidate is the Verano, which shares a platform with Chevy’s Cruze, which is now available with a four cylinder turbo diesel in the U.S. The Opel Astra, even more closely related to the Verano, already offers a 1.9 liter CTDI diesel in Europe.

Ownership of VM Motori, the Italian maker of the V6 diesel engines offered in the Jeep Grand Cherokee and Ram 1500, is currently split 50/50 between General Motors and Fiat. But according to Automotive News, Fiat is looking to buy the other 50 percent, completing its ownership stake.

Citing what they say is a need “to accommodate final emissions testing and certification,” Mazda confirmed to Automotive News that the U.S. launch of the diesel powered Mazda6 will be delayed from the end of this year until late April 2014.

Hackenberg talks to reporters from SAE Magazine and Fortune …

“It is good for the future of diesel in the USA that a domestic producer also uses a diesel engine,” said Volkswagen’s R&D Chief Dr. Ulrich Hackenberg today. “If the volume of diesel engines is increasing, then it makes sense to produce diesel engines in the U.S.A. That would be great for us and the customer,” Hackenberg said.

Now that Chevrolet has revised their EPA mileage estimate for the Chevrolet Cruze Diesel, from 42 mpg to 46 mpg, we need to revise our own estimates.

My TDI in Japan

The engine quit with a sudden un-dramatic snap, and the little Golf TDI began to slough off speed. Reflexively, I bumped the gearshift lever into neutral, flicked on my signal and began moving towards the left edge of the expressway. My exit was less than a mile away and, rather than stop alongside the highway, I used my momentum to coast up the off-ramp and over the small knoll that stood between the expressway and the toll plaza. I stopped there, on the back side of the hill where the road widened on the approach to the toll booths, to avoid blocking traffic and dug out my cell phone to call for a tow truck. I didn’t know it then, but it was the last time that I would ever sit behind the wheel of the little car, never mind the fact that it would follow me again around half of the globe.

A reader tip pointed us to an issue with Mazda’s recent Skyactiv-D diesel engines in Australia. Apparently, the vehicle’s particulate filter may be the source of some engine oiling issues.

Alas, no wagons among them, but Audi is launching four new diesel powered models for 2013, marking one of the biggest pushes for diesel in the North American market.

In a devastating blow to fans of contrived displays of ecological sensitivity and ostentatious displays of consumption, Range Rover will apparently not sell their diesel-powered Range Rover Hybrid from the American market.

The 335d may not have done so well in the United States, but BMW seems undeterred, and is set to launch yet another oil-burning 3er shortly.

Last December, Toyota and BMW announced “a long-term technological partnership.” Ostensibly, it was about developing batteries together, and about BMW supplying diesel engines, in that order. Four months later, the priorities seem to have changed a little.

In Europe, half of the cars sold are diesels. In The U.S. and especially in Japan, automakers literally wrinkled their nose at oilburning cars. This is slowly changing, says The Nikkei [sub].

There was ample hand-wringing when Volvo announced the death of their iconic station wagon in North America. While enthusiasts mourned the death of a cult classic, Volvo also announced a plug-in hybrid version of their V60 wagon, powered by a diesel engine and a hybrid drivetrain. Naturally, this vehicle was not destined for sale in North America.

The non-available V60 plug-in constituted the ultimate slap in the face for the Volvo faithful. Here was the newest generation of Volvo wagon (as opposed to the warmed over XC70 offered recently) with an environmental bent and the Euro-cachet of a diesel engine – but where was it? As Jamie Kitman of Automobile magazine rightfully pointed out, their core buyer is “green” but refusing to import such a vehicle may not be “lunacy”, because the Swedes have something more suited for American tastes – the same hybrid goodness, packaged as a gasoline-powered crossover.

Forget Amerindian prognostications of the apocalypse occurring in 2012 – the sight of an oil-burning Porsche SUV is enough for some to consider it the end of the world.

The announcement of a diesel powered Porsche Cayenne was buried deep within a press release for the Porsche 911 Cabriolet’s debut at the 2012 North American International Auto Show. According to the release, the spring launch of the previously revealed Panamera GTS “…will subsequently be followed by the Cayenne Diesel as Porsche’s first compression-ignition car in the USA.”

German-Nipponese alliances are not going out of style, the Volkswagen/Suzuki soap notwithstanding. Toyota and BMW cut a diesel deal – if The Nikkei [sub] is correctly informed. They ran the story very early in the Japanese Saturday morning; hence no comment from Toyota is available. We’ll ask on Sunday, when we’ll see that mysterious RWD sports car.

According to The Nikkei, BMW will supply diesel engines for Toyota’s passenger vehicles sold in Europe. When and how many is unclear.

Volkswagen had painted a bulls-eye on Toyota and wanted to beat the Japanese by 2018. At least in terms of production numbers, Volkswagen will have Toyota beat this year. Instead, VW has to contend with GM.

The long-term new energy strategy of Volkswagen and Toyota on the other hand could have been devised in a joint planning session. Volkswagen believes that near-term, the plug-in-hybrid has a great future, whereas Volkswagen’s CEO Martin Winterkorn won’t live long enough to witness the boom of the pure electric car.

The German newspaper Handelsblatt has an interview today with Winterkorn. It echoes in large parts the interview which I had ten days ago with Toyota’s Chief Engineer Satoshi Ogiso. The two sound amazingly similar: Bullish on plug-in hybrids. Cautious on EVs.

28 years. That’s how long the first and only owner of this 1982 VW Jetta Diesel Coupe kept his commuter. Apparently he didn’t do that much driving. 192,500 leisurely miles with a 55 horsepower engine equates to less than 7,000 leisurely miles a year. That is a mileage figure that borders on the miraculous here in traffic happy Atlanta.In all my years of buying and selling cars I had never seen one owned by the same driver for such a long period of time. Heck, I was in elementary school when Mr. JT Allison bought this thing! It had been on the lot for at least 8 months beforehand according to the Carfax history and with gas prices cratering by April 1983… I’m sure Mr. Allison didn’t pay any more than $8,000 for this thing.So… what should I do with it?

As the automaker that’s least-prepared for upcoming increases in federal fuel economy standards, it was more than a little surprising to find that Fiat’s five year plan for Chrysler did not involve any significant plans for hybrid drivetrain development. But more recently, CEO Sergio Marchionne has said a hybrid Chrysler 300 would be offered in 2013, and the firm hooked up with the feds to work on a hydraulic hybrid drivetrain. And though new CAFE regulations offer generous credits for hybrid pickups, a policy choice that rescues Chrysler’s investment in “Two Mode” hybrid technology, more will have to be done. For, in the words of Marchionne [via Automotive News [sub]],

I have no other way of getting to 2025 numbers than by going to hybrids

But Chrysler won’t rely fully on hybrids in order to make the significant fuel economy improvements it needs. In fact, it will be relying as much on diesels and compressed natural gas (CNG) drivetrains as anything else.

It’s a phenomenon with some precedent: import manufacturers will get nowhere with a certain bodystyle or drivetrain until one of the US domestic brands jumps on the bandwagon and popularizes it. And Jeff Breneman, executive director of the U.S. Coalition for Advanced Diesel Cars, is hoping the same dynamic plays out in the world of diesel power when Chevy brings its Cruze Diesel to the US. He tells WardsAuto

The fact that Chevy will offer a diesel Cruze in 2013 is huge. The gas-powered Cruze will get 40 mpg (5.9 L/100 km), so the diesel is expected to get 50 mpg-plus (4.7 L/100 km), and that will make it a game-changer.

Ford, Toyota or Honda haven’t got a diesel for the U.S. yet, but get ready for 2013-2014. That’s when we’re going to see a lot more diesels.

And, as the diesel booster-in-chief, it’s not surprising that Breneman would come to that conclusion. But what are folks inside GM saying about the Cruze diesel? In a recent interview with TTAC, senior advisor Bob Lutz suggested that we shouldn’t expect the Cruze diesel to conquer America or “change the game” all that much.

With Audi and Peugeot dominating the last several Le Mans races using diesel technology to outlast the competition, it seems that the famous French race is becoming the premiere stage for developing and highlighting the latest fuel-saving technology. And why not? Most marketing of new fuel-saving technology highlights the preserved performance and enhanced reliability as much as pure energy savings alone. And leadership in this suite of attributes is about to receive a little more competition, as Toyota announces that

In 2012, Toyota will take part in several races of the FIA World Endurance Championship, including the Le Mans 24 Hours, with a prototype “LMP1” car featuring a gasoline-electric hybrid powertrain.

Get Hyundai on board, and bring BMW’s new i brand into the mix, and the international racing business could be re-energized by the competition to demonstrate the perfect compromise between performance, reliability and efficiency. As many of the top racing series see declines in viewers and manufacturer participation due to their increasing irrelevance to mass-market vehicles and brands, the golden age of endurance racing could just be dawning.

Dow Jones cites a report in Der Spiegel Magazine which claims that GM Vice Chairman for Corporate Strategy Steve Girsky

has made enquiries at BMW to start discussions on “far-reaching joint projects.”

According to Dow Jones, the Spiegel article does not cite any specific source for its information, and TTAC has not yet been able to find the original article online. According to Dow Jones, GM is

primarily interesting in gasoline and diesel engines… General Motors is at an advanced stage in developing a fuel cell and could offer co-operation in that field… The technology behind GM’s Opel Ampera electric vehicle would also be of interest to BMW, according to the report.

GM has not yet responded to TTAC’s request for comment. A similar r umor was floated by Handelsblatt around this time last year, but BMW was quick to quash it. Are things different this time, or is GM still struggling with unrequited desire? We’ll let you know as soon as possible…

First of all, let’s not fool ourselves: this is quite the hypothetical question. For one thing, Fiat is unlikely to federalize the Doblo cargo van that this “Work Up” is based upon until a subsequent generation comes out. In the meantime, the only Fiat Professional vehicle the US market will be getting anytime soon (thanks to CKD production at Warren Truck, according to Allpar) is the Ducato van, which competes fairly directly with Daimler’s Sprinter. But, hypothetically, could this Doblo “Work Up” find a market in the US? Let’s look at what it offers…

Slightly over 11 years ago, Jaguar set the car world’s heart a-flutter with the sleek, stunning F-Type concept. Shortly thereafter they said they’d build it, and relentless hype (including a totally unconvincing C&D “ First Drive Review” featuring no actual driving impressions) followed. As the years dragged on, it soon became clear that Jaguar would not be building the achingly gorgeous sub-XK roadster (a decision that Robert Farago called “a shocking miscalculation“). But now, with mules already prowling the British countryside, a new baby Jag roadster concept is coming to the Frankfurt Auto Show… and Jaguar tells Autocar it will be a “precursor” to the coming production model. As a big fan of Ian Callum’s work, I’m sure it will look absolutely delicious… but if this somehow turns out to be another F-Type-style tease, Jaguar will be dead to me forever. [UPDATE: video preview after the jump]

Porsche was spared a major embarrassment – by the Chinese. According to an emailed memo, the boys in Zuffenhausen sold 10,722 vehicles worldwide in July, that’s 4 percent below the 11,169 units sold in July 2010. It could have been worse.

With US gas prices at some of the lowest levels in the world, it’s not too surprising that US consumers aren’t overly anxious to go electric, but what about in Germany, where gas prices are near double the US’s? According to Thilo Koslowski of Gartner Research, interest in EVs remains low there as well, and the big gainer in recent years has been hybrid technology… at the expense of the once-ubiquitous diesel, demand for which has “peaked” according to Koslowski’s research. Says the man who coined the term “ the trough of disappointment,”

Although the majority of German consumers continue to see EVs’ benefits in environmental and socioeconomic implications, broad adoption of EVs will remain low as long as current offerings don’t meet drivers’ practical usability and cost-saving requirements. To expand from early to mainstream EV adopters in Germany, automotive companies must focus on technology innovations, offer pricing strategies that are aligned with established premiums for diesel and hybrid powertrain options and develop diverse EV model mixes targeted at younger consumer segments that have higher EV interest levels than older demographics… E-mobility will become a viable addition to future transportation scenarios in Germany, but automotive companies and the German Government must address marketability requirements of EVs, prioritise technology investments and continue to promote cross-industry collaboration. Future mobility concepts will consist of diverse powertrain choices and business models that will leverage technology to satisfy consumers’ transportation needs while challenging traditional car ownership.

Tata’s Nano was launched with much fanfare in 2009, as the world’s cheapest car and a symbol of India’s automotive and economic aspirations. But first Tata had problems with its factory, which was to be built on land [allegedly] stolen from local farmers. Then, early last year, the cars started catching fire and refused to stop. Then finance was the issue, and when Tata revamped its finance, advertising and retail presence, it looked like things were beginning to improve. It turns out the bump was short-lived. After hitting 5k monthly sales last December, volume has fallen again dropping to 3,260 units in July (1/8th the volume of its main rival the Maruti Suzuki Alto) according to indiancarsbikes.in, which reckons

Startlingly, the most fuel efficient petrol car in the country, which is the most inexpensive too isn’t finding takers in a market troubled by high petrol prices and rising loan interest rates, that is clearly favoring cheaper and more fuel efficient cars… the market isn’t biting and the Nano sales have begun the downward spiral, this time continually.

So, what’s Tata going to fix to get its attempt at “India’s Model T” back off the ground. How about “everything”?

After the apocalyptic warning from the industry about a proposed 56.2 MPG 2025 CAFE standard, the auto industry seems to be backing the White House’s latest proposal, which reduces the 2025 target to 54.5 MPG, slows the rate of efficiency improvement for trucks and increases advanced technology credit loopholes. Another key consideration: the White House agreed to a mid-term review of the 2025 standards to ensure they reflect the market. Plus, the DetN points to a previously unheard-of compromise to keep big trucks cheap:

The plan is also carving out special rules for “work trucks” — heavier light duty vehicles used for construction.

As a result of these compromises, the WSJ [sub] reports:

As of Wednesday, Toyota Motor Corp., General Motors Co., Ford Motor Co., Chrysler Group LLC, Honda Motor Co., Hyundai Motor Co., Nissan Motor Co., BMW AG and Volvo had told the administration they would support the plan

With the industry now largely on board, the Obama Administration has a green light to announce its new standard at a ceremony planned for tomorrow. But not everyone is happy with the new proposal…

An extravagant ceremony at Bangkok’s Impact Arena has seen the launch of Toyota’s new Hilux and Fortuner – key models in its developing market portfolio. The pair are products with big, tough reputations, and importantly, the profit-generating ability to match.

As a relatively pragmatic person who generally chooses the imperfect-yet-achievable path rather than agonizing over the perfect-but-unattainable goal, this chart [from a fascinating Boston Consulting report, in PDF here] frustrates me. I understand why Americans choose hybrid-electric cars as their most favored “green car” technology, but from their it gets fairly crazy. EVs are fantastic on paper, but in the real world they’re still far too expensive, their batteries degrade, they have limited range, oh and did I mention that they’re freaking expensive? Biofuels, America’s third-favorite “green” transportation technology can be fantastic in certain limited applications, but the ongoing ethanol boondoggle proves that it will never be a true “gasoline alternative.” Finally, at the bottom of the list, Americans grudgingly accept only relatively slight interest in the two most promising short-term technologies: diesel and CNG. Neither of these choices is radically more expensive than, say, a hybrid drivetrain and both are considerably less expensive and compromised than EVs at this point. So why are we so dismissive of them?

GM still won’t comment on the matter, but a recent rumor that the Cruze’s two-liter diesel engine will be federalized for the 2013 model-year has been confirmed to the AP [via the DetN] by “two people briefed on GM product plans.” That motor, designed by VM Motori and built since 2006 by GM-Daewoo, was recently updated to Euro 6 standards, and according to the Holden website, the Australian-spec version makes 160 HP (at 3,800 RPM) and 236 lb-ft (at 1,750 RPM), while returning 42 MPG (combined with manual transmission) or 35 MPG (combined, automatic). Of course those aren’t EPA numbers, and they could easily change by the time the engine is certified for US emissions standards.

What’s a Wingle? It’s Great Wall’s Chinese-made entry in the “World Pickup” segment, taking on Ford’s Global Ranger, Toyota’s HiLux, Nissan’s Navara, Mahindra’s Scorpio Pik-Up and more. Having been limited to sales in Iraq, Australia, Chile, South Africa, Algeria, Syria, Uruguay, Russia and Saudi Arabia, Automotive News [sub] reports that Great Wall has wangled the Wingle into the European market by establishing a beachhead in Italy with a 2.0 diesel version. Obligatory crash-test video after the jump…

47.2 percent of all cars bought in Germany last month don’t run on gas. They run on diesel. It wasn’t always that way. A quarter century ago, a diesel car was unheard of in Europe. Well, not quite: The Mercedes diesels had a characteristic tractor sound. The diesel Mercedes was popular with taxi drivers because it was so sturdy, and with farmers. Farmers could buy low-tax diesel for their tractors. Allegedly, some found its way illegally into their diesel-Benz.

Success is not built on lawbreaking farmers and taxi drivers. What made the diesel driven car so popular?

It was the Volkswagen Golf D. And it didn’t make sense at all.

Fisker’s powertrain partner Quantum Fuel System Technologies has partnered with the US Army’s Tank Automotive Research, Development and Engineering Center (TARDEC) to produce a diesel-electric, series hybrid Clandestine Extended Range Vehicle (CERV). GreenCarCongress reports

the prototype CERV is equipped with a 1.4-liter diesel to drive the genset, and is designed for quick-paced mobility operations such as reconnaissance, surveillance and target designation. CERV pairs Quantum’s advanced all-wheel-drive diesel hybrid-electric powertrain with a light-weight chassis to produce a torque rating that exceeds 5,000 lb-ft (6,780 N·m) [Ed: after gear reduction].

The unit can maintain speeds of 80 mph (129 km/h) and climb 60 percent grades while reducing fuel consumption by up to 25% compared with conventional vehicles of comparable size.

As Ronnie Schreiber’s piece on the Arsenal of Democracy shows, military developments can have a profound affect on the private transportation market. As the military pursues efficiency for strategic and tactical purposes, let’s hope more advanced drivetrains trickle down into the civilian realm.

Ford sold 8,834 Transit Connects in 2009, with sales of the small, Euro-style panel and passenger vans hitting 27,405 units last year. With 9,852 already sold in the first third of 2011, it seems the original German delivery van-slingers in the US market, Mercedes, are taking notice of the segment. The Dodge-branded Sprinter, a larger vehicle, saw peak sales of 21,961 back in 2006 has seen sales fall dramatically in recent years, and in 2010 Mercedes wrestled the vans back to its brand, only to sell a meager 8,599 (a nearly 1,500 unit improvement over Dodge’s last year with the product). In other words, the lesson of recent US-market Euro-style delivery vans seems to be that bigger (i.e. more direct competition with American BOF offerings) is not better.

Pickuptrucks.com reports that you may not have to wait for Mahindra to work through its legal issues to get an efficient diesel-powered pickup, as the DOE has funded development of a four-cylinder Cummins diesel engine which is being demonstrated in a Nissan Titan. According to the report

Cummins refers to the engine by the codename “LA-4” with a 2.8-liter displacement (170 cubic inches). Initial power figures on the engine dyno have the mule test engine producing 350 pounds-feet of torque at around 1,800 rpm. A chart in the presentation shows targeted power levels to be approximately 220 horsepower and 380 pounds-feet.

The engine is likely a derivative of the four-cylinder ISF architecture that Cummins builds overseas, with 2.8-liter and 3.8-liter displacements. The overseas 3.8-liter is rated at 168 horsepower and 443 pounds-feet of torque…

To meet U.S. clean-diesel standards, the 2.8 would use diesel exhaust fluid to scrub nitrogen oxide emissions, like Ford and GM use today in their heavy-duty diesel pickups. It would also feature a so-called passive NOx storage system that would capture and hold NOx during cold starts, releasing the gas when temperatures rise to levels of max efficiency for DEF. The passive system would save fuel used today to jumpstart NOx scrubbing when the system is cold.

The upshot? 28 MPG combined, according to pickuptrucks.com. Given the discrepancy between EPA fuel economy numbers and the CAFE method, that means this engine could make a Titan (which gets 13/18 MPG EPA with its stock V8) more than compliant with the 2015 30 MPG truck standard. And because the DOE spent only $15m, this probably qualifies as one of the more promising government fuel-economy improvement programs in some time. After all, improving truck efficiency is one of the toughest aspects of CAFE compliance… and if a Titan can get nearly 30 MPG combined (about the same as current four-cylinder family sedans), the government’s $15m just bought it a crushing blow to the industry’s anti-CAFE carping.

There have been a number of important meetings in the auto industry over the last several years that TTAC dearly wishes it could have been a fly on the wall for, including GM’s decision to keep Opel, Fiat’s negotiations with the White House and Saab’s visit to its local payday loan store, to name just a few. But perhaps one of the more interesting boardroom battles of recent years has to be the new VW-Porsche Group’s struggle over how to brand its forthcoming mid-engine sportscar platform which first debuted as the VW BlueSport. Bertel reported last Summer that Porsche, Audi and VW were all bidding for the group’s sportscar development work, but that Porsche was likeliest to emerge with the title.

And it turns out he was right, as Auto Motor und Sport reports that VW has solved the problem by canceling Audi’s planned version of the BlueSport, leaving small mid-engine sportscar efforts in the hands of Porsche and VW. Though the decision makes the BlueSport’s branding challenge quite a bit easier (while cementing the prominence of firms related to Ferdinand Porsche at the expense of the Horch-created Audi brand), it has one less-than-ideal outcome: it removes Audi’s ability to bracket Tesla’s Roadster, a move which would have surely hurt the Silicon Valley upstart. Still, internal politics are more important than obliterating a limited-production competitor… and at least VW has its branding ducks back in one relatively orderly line.

Many equate China with smoke and soot belching cars. In reality, China’s emission and fuel consumption standards now generally follow the European roadmap. Implementation of standards trails the European role model by only a few years. Ironically, it is a European brand that just ran afoul of this misperception – if Chinese media is correctly informed.

American auto enthusiasts often bemoan the lack of diesel options offered on the US market, looking to Europe as the promised land of oil-burning efficiency. But Europe’s love affair with diesel, which has been manifested in a 50%+ diesel sales mix for years, may be coming to a close. The WSJ reports

The European Commission–which has executive powers in the European Union–will propose to levy a minimum EUR20 per metric ton of carbon dioxide emitted on products like gasoline, diesel, natural gas and coal starting in 2013. But it will also propose adjusting the existing legislation by gradually increasing a minimum levy on the energy content of diesel to bring it to the same level as that of gasoline starting in 2018

Here’s the key: in addition to basing taxes on C02 emissions, the EU tax structure shift will result in fuel taxation based on energy content rather than volume alone. Accordingly, diesel’s higher energy content means it will see a more dramatic increase in taxation levels. And this single common-sense proposal is unleashing an intense debate in Europe about energy, taxation and the future of the auto industry.

In the post-Veyron, post-Horsepower Wars world, “Responsible Performance” has been the catchphrase on the lips of every purveyor of performance cars. And with Audi and Nissan already set to brawl for EV sportscar niche that’s being abandoned by Tesla with the forthcoming end of production of its Roadster, diesel power seems to be benefiting from a second look by would-be “responsible performance” vendors.

Unsurprisingly, the tuning houses are promoting their diesel efforts, as EV tuning presents significant challenges to the ICE-based tuning community. And the BMW modifiers at AC Schnitzer are leading the way with this Z4 “99d,” a 188 HP, 310 lb-ft two-liter turbodiesel roadster capable of 146 MPH. Oh yes, and 99 grams of CO2 per Km, or (very roughly) 60-ish MPG (non-EPA). Sound like a healthy compromise between “responsibility” and performance? The only thing you’ll have to give up is the $210,000 that Automobile says this Schintzer concept would cost if it were built.

Why don’t more mass-market brands offer diesel engine options? After all, the evidence suggests that the passenger cars that offer diesel options enjoy a healthy take rate for oil-burner engines. So would a brand like Ford ever consider bringing diesels to its US offerings? According to the Blue Oval’s Product Boss Derrick Kuzak, the answer is absolutely not. And, according to Automotive News [sub] he’s got an interesting reason for nixing a US-market diesel option.

With rising petroleum prices, one European journalist asked if Ford planned to alter its powertrain strategy and sell cars with diesel engines in the United States. The journalist mentioned that some European automakers offer diesels in the United States.

Kuzak said Ford “could easily bring diesels to the U. S. market.”

Then he quickly added: U.S. “customers, I think, are pragmatic.”

Too pragmatic for improved efficiency? Huh?

With Sprinter back under the Mercedes sign, Chrysler Group is looking to Europe and Fiat’s Doblò (above) and larger Ducato to expand back into the commercial van segment, starting next year. The European commercial vans are a far cry from the last Ram-branded body-on-frame vans, as the Doblò is actually based on a 108.5 inch wheelbase version of Fiat’s SCCS platform, a development of GM’s Gamma subcompact platform. As a result, the front-drive Doblò comes with engines ranging from 1.3 to 2.0 liters, and are largely powered by diesel engines. The Doblò is available in everything from a two-door chassis cab pickup, a three-, four- or five-door panel van, or a five-door passenger configuration.Because the new Ram commercial vehicles will be imported starting next year, expect only the van variants to avoid the “chicken tax.“

The larger, rear-drive Ducato offers a dizzying number of body variants, with wheelbases ranging from 118.1 inches to 149.6 inches, and offers only diesel engines in displacements from 2.2 to 3.0 liters with 100-155 HP. Until we get more details, it’s impossible to know which versions of these vehicles will come to the US, and whether the diesel and (for possibly even natural gas) versions will come as well. But the real question remains the same as it was a year ago:

how will these Euro-derived efficiency-oriented urban haulers jive with the Ram brand’s overbearingly bro-magnon branding?

Gas prices are getting into the area where they affect consumers’ buying decisions. According to a new Kelley Blue Book study, more than 80 percent of car shoppers say that gas prices have influenced their buying decisions. 58 percent already have downgraded. But what about switching to diesel or hybrid instead? Be careful when you do that, says Edmunds: Choosing a green alternative can cost you a lot of green.

Dieseldriver.com broke down diesel sales for 2010, and found that December’ diesel sales (7,604 units) were about double the monthly rate for January of last year (3,855), although diesel’s overall market share is not growing at a commensurate rate. For vehicles available in both gas and diesel versions, the diesel take rate over the course of 2010 was 32%. Audi buyers chose diesel powertrains most often where available, with a 48% take rate on diesel versions of the A3 and Q7. Volkswagen had the second-highest take rate at 7%, with its Jetta Sportwagon leading the way with nearly five diesel versions selling for each gas version sold.