Our Abandoned History coverage of the Turbo-Hydramatic transmission series continues today. The THM was a singular solution to two different automatic transmissions in use by Oldsmobile, Cadillac, and Buick in 1963. Turbo-Hydramatic arrived at a time of modernization for the automatic, which prior to the mid-Sixties was regarded as inefficient and less than smooth.

The THM400 was the 1964 replacement for the Hydra-Matic and Buick’s Dynaflow and established itself as a smooth and reliable gearbox. It proved useful in a variety of luxury and heavy-duty applications and shrugged off weight and torque easily. In short order, it took off as the transmission of choice for various small manufacturers outside of GM. However, no matter how excellent the THM400 was, it found itself squeezed by a drive toward greater fuel efficiency. It was also a bit hefty to be of broad use in smaller or lighter passenger cars. GM needed more Turbo-Hydramatics!

It appears that Tim “The Toolman” Taylor has a product-planning position at Cadillac.

That’s because, apparently, someone decided that just what the Escalade needed was “more power.”

A lot more power.

A few weeks ago, we concluded Abandoned History’s two-part coverage of the Chrysler UltraDrive transmission. Within the comments was a request for more transmission coverage of an equally abandoned nature. Let it be so! Come along as we discuss the vast automatically shifted expanse that was the Turbo-Hydramatic transmission family, by General Motors.

Way back in 2007, I kicked off the Down On the Street series (which was supposed to be a one-time reference to the title of a Stooges song beloved by me and the late Davey J. Johnson) with the first of what would turn out to be hundreds of interesting street-parked cars: a 1984 Cadillac Cimarron d’Oro. That led to something of a Cimarron obsession, and I’ve spent the past 15 years documenting every semi– intact Cadillac J-Body I find during my junkyard adventures. You’d think they’d all have been crushed by now, but such is not the case; I found this loaded Brown Overload Edition ’85 in a yard near Pikes Peak earlier this year.

Ford Motor Co and General Motors will be individually suspending production in Michigan next week due to supply chain constraints. However, it’s difficult not to notice that the chosen facilities are responsible for lower-volume models they could probably afford to idle.

GM is stalling Lansing Grand River Assembly and Stamping, citing a parts shortage it said had nothing to do with the ongoing deficit of semiconductor chips. The company later stated that the Russo-Ukrainian war had not played a factor, abandoning the two most popular excuses for why something isn’t being done in 2022. Meanwhile, Ford has said the chip shortage has everything to do with its temporary closure of Flat Rock Assembly.

We return to the saga of GM’s High Technology engine today, after taking a diesel detour in our last entry. Concurrent in the High Technology engine’s timeline, the Oldsmobile diesel’s failure was quick, but certainly not painless. It put the majority of American consumers off the idea of a passenger car equipped with a diesel engine. And by the time GM pulled the diesel from its various brand lineups, there was a strategy change over in HT4100 land: Not calling the engine HT anymore.

The New York Times often gets unfairly criticized, usually by readers who have their own political biases (right and left), but sometimes the criticism lobbed its way is not only very fair, but accurate.

And when it comes to autonomous driving, the vaunted Times has stepped in it, big time.

In today’s edition of Abandoned History, we return once more to the late Seventies engines of General Motors. After the disaster which was the V8-6-4 and the subsequent release of the quite flawed HT4100 V8, we take a sidestep today into diesel. Time for a turn with the cost-cut cast iron Oldsmobile oil burner that accompanied the troubled gasoline engines at GM dealerships across the country.

The deck was stacked against the CT4-V Blackwing long before it rolled into my driveway. My seat time in Cadillac’s latest compact sports sedan came after not only a stint in the unfortunately-styled-but-otherwise-very-good G80 BMW M3 but also the Cadillac CT5-V Blackwing, the latter of which is arguably the greatest sports sedan that’s ever been produced. Yes, the CT5 occupies a different space (and price point) in the market, but these two cars are so similarly styled, it’s easy to mistake one for the other at a glance.

In our last edition of Abandoned History, we covered the years leading up to the release of the Cadillac High Technology V8. Used almost exclusively in 1981, the disastrous V8-6-4 had a primitive engine management system that could deactivate either two or four cylinders on Cadillac’s traditional V8. And while the idea was sound, the technology and engineering behind it were not. Cadillac was left in a bind and needed a replacement engine immediately. But the engine of choice was not finished, and not ready for primetime. Ladies and gentlemen, welcome the medium-rare HT4100.

A modern and efficient V8 of 4.1 liters, the HT4100 was the exciting way forward for Cadillac’s propulsion needs in the early Eighties. The engine came hot on the tail of a very iffy cylinder deactivation experiment, V8-6-4. Unfortunately, just like the cylinder games before and the Northstar after, the HT was plagued with issues that took years to iron out. The HT in its name meant High Technology but could’ve meant Halfway There. Let’s travel back to the Seventies and talk cylinders.

Back in 2016, I had plenty of nice things to say about Cadillac’s flagship performance model of the day, the third-generation CTS-V. But while Cadillac’s naming conventions have become much more convoluted over the past six years, on paper the CT5-V Blackwing seems like more of the same: A big, boosted V8 still remains under the hood, and it’s still underpinned by an updated version of GM’s Alpha platform. The interior still isn’t on par with its German rivals, and because it’s still rear-wheel drive, it’s still a few ticks behind its all-wheel-drive competition in the sprint to 60 MPH.

Yet despite these objective facts, the CT5-V Blackwing proves to be a stone-cold revelation. Yes, the re-introduction of the six-speed manual transmission plays a significant role in that, but there’s much more going on here than just the availability of a third pedal. Not only has Cadillac addressed virtually all of the shortcomings that held the CTS-V back from venturing into instant-classic territory, they’ve refined and improved the formula in so many subtle ways that the CT5-V Blackwing feels like a totally different car.

1988 was an interesting year for The General’s Cadillac Division. The Cavalier-based Cimarron was in its final year of sales, the Hamtramck/Turin-built Allanté was in its second year (and priced about the same as a Mercedes-Benz S-Class), and the “traditional” rear-wheel-drive Brougham sedan shared showroom space with the front-wheel-drive De Villes, Eldorados, and Sevilles. The old Sixty Special name was still being used, along with such slightly newer titles as Elegante and d’Elegance. While the Allanté lived at the top of the GM prestige pyramid for ’88, the Fleetwood was the car of choice for those very wealthy Cadillac shoppers who insisted on four doors and zero Pininfarina nonsense. Here’s one of those cars, found in excellent condition in a Denver yard last spring.

Cadillac is expected to have lost one-third of its U.S. dealerships this year — going from nearly 900 physical locations at the start of 2021 to an estimated 560 by year’s end.

But there’s allegedly no need to worry about the brand because this is part of a planned electric offensive. Last year, Cadillac asked dealers to spend the capital necessary to install charging stations, update their service centers, and retrain staff to better tackle EVs or take a buyout before the automaker’s first battery-driven car (the Lyric crossover) hits the market early in 2022. It would seem that a meaningful portion of the whole decided to bow out, which Cadillac seems totally fine with.

Sometimes car companies get a bit carried away with a new idea that, for a myriad of reasons, doesn’t translate so well in its execution. Toyota (and other Japanese companies) did exactly this when they invested in the very unsuccessful line of WiLL cars and other consumer products in the early 2000s.

Today we look at a 1980s domestic example of an idea that fell flat. It was the time Cadillac thought applying lipstick to a Cavalier-shaped pig would make the BMW and Mercedes-Benz 190E customer come a’callin. It’s time for Cimarron, a J-body joint.

There’s a new automotive trend afoot, one where industry giants alter their iconic corporate logos so they’ll play better in a digital environment. Shadows and color gradients designed to give an image depth don’t always pop on a cheap screen the way they might on the glossy piece of paper and have encouraged manufacturers to transmission to flat, monochromatic icons that look bad everywhere.

But consistency isn’t the only reason to change logos. It’s also an opportunity to signal to customers that you’re evolving as a brand, which is why so many companies have associated their new iconography with the pivot toward electric vehicles. General Motors, recently ditched the logo it’s been using (more or less) unchanged since 1964 for a Bizarro World alternative that swaps the color pallet and makes the letters lowercase. Now it’s modernizing the emblem to be used for Cadillac’s electrified products until they gradually supplant the entire lineup.

Ninety years. That’s the amount of time that General Motors has led the sales charts in the U.S.

That may change this year, according to industry bible Automotive News, because of the ongoing microchip shortage.

Starting in the 1997 model year, The General’s Cadillac Division glued Cadillac badges and some puzzling cartoon-duck advertising to the Opel Omega and called it the Catera. I’ve photographed just about every junkyard Catera I’ve found because they seem like relics from a long-ago past when Detroit car companies believed Americans would buy their European-market cars… or cars, period. Another Cadillac from the same era fits right in with American automotive trends of the last couple of decades, though, because it helped create them: The Cadillac Escalade. Here’s a first-model-year Escalade, found in a Silicon Valley self-service yard a few months back.

Cadillac’s instance that it be the first brand owned by General Motors to go entirely electric has resulted in a shrinking U.S. dealership network, though perhaps a healthier bottom line for GM in the long run. It may also foreshadow the trajectory of other brands committed themselves to EVs and give us a sense of what the dealer landscape might look like in a decade or two.

Over the last few years, American luxury brands have been attempting to grow in select markets they believe will bring in new, affluent customers by building experience centers that mimic high-end airport lounges. Cadillac even briefly moved its base of operations to New York City as a way to gain distance from its rustbelt background and ingratiate itself into high society. More recently, Lincoln introduced a Central Park-themed Navigator as both have been trying to lay down roots in parts of California after ceding a large share of the market to the competition decades earlier. But GM’s insistence that Cadillac become an all-electric brand (with Lincoln also targeting a glut of EV sales by 2026) seems as though it could create complications, even if the end result is a major victory.

The chip shortage has struck again.

General Motors is going to temporarily halt production at most of its North American assembly plants, starting Monday, because the shortage of semiconductor chips continues.

I’m back with more boring used car content, a topic some of you apparently despise with a passion. Caution: More used-car discussion ahead, get out while you still can if this is the case! For the rest of you, let’s review the impractical car suggestions you’ve made that earned a spot on the Yes, I Like list.

Today’s Rare Ride started out as a rather ordinary Cadillac Brougham but was thoroughly transformed for some reason by a well-heeled customer into something unusual. I’m a bit at a loss here.

Today’s edition of B/D/B is a little different than the norm. Usually, we ask you to choose from competing cars from three different marques all on sale in the same year.

This time we’re asking you to pick a Buy from among three different two-door Cadillacs, all of which cost about the same in 2021.

We’ve featured two special Eldorados in the Rare Rides series previously. Most recent was the final Collector Series of the ETC, or Eldorado Touring Coupe. Long ago we also featured the very first Eldorado Touring Coupe from the Eighties.

Today we’ll have a look at the ETC in the middle, and complete our collection with the smallest Eldorado generation of all.

The automotive press, ourselves included, has been hard on Cadillac in recent years. But the brand is making strides back to respectability.

Unfortunately, the journey is long and incomplete.

For evidence, I submit the CT5. There’s a lot to like about it. But every day I spent with it revealed more and more flaws.

Today’s B/D/B was suggested by commenter namesakeone, who posited that a couple of the cars featured in the worst halo cars article last week might make an interesting trio for this segment.

I needed to cover one more as a Rare Ride first, which is why we saw that Thunderbird yesterday. Requirement out of the way, it’s time to have our first multi-decade, Rare Rides-sourced Buy/Drive/Burn.

In the midst of the Great Depression, Cadillac offered a new range of ultra-expensive motorcars that featured 16-cylinder engines – a count never offered previously by a domestic automaker. One of the V-16’s most prestigious variations is today’s Rare Ride.

Presenting the extremely exclusive All-weather Phaeton sedan.

While we’re on the subject of Super Bowl commercials, there wasn’t just one, but two, that irritated me on Sunday.

This one has little, if anything, to do with politics, so you can relax and cancel out that angry email you were about to send me.

Nope, this one has to do with the misinformation circulating about autonomous cars.

Last week, GM announced plans to go 100 percent EV with its light-duty vehicle fleet in less than 15 years. Tonight, Cadillac took the wraps off two high-performance luxury sport sedans that probably won’t pass too many gas pumps.

Talk about whiplash.

The Consumer Electronics Show, typically held in Las Vegas in January, is virtual this year. Because of the coronavirus, as I am sure you’d expect.

They say all good things must come to an end, and so it was in 2002 with the Cadillac Eldorado. Today’s Rare Ride was the last in a long line of flagship coupes from Cadillac, and one which saw the name exit with a whimper instead of a bang.

Today’s Cadillac is an example of what happens when you combine consumer tastes in places like Miami in the late Eighties with the refusal of some domestic manufacturers to make luxury convertibles.

Presenting a Cadillac coupe that’s custom, cabriolet, and cool DeVille.

Cadillac’s XT6, a midsize crossover our reviewers had something to say about, arrived in mid-2019 with one powertrain in tow. Instant rivalry sprung up between the front-drive-biased XT6 and the rear-biased Lincoln Aviator. Our preference lands firmly on the latter CUV.

Regardless of our feelings on the model, Cadillac has decided to broaden the XT6’s net, introducing a new base model for 2021 that sinks the model’s power and price.

That’s likely something you won’t hear from passers-by when the Blackwing versions of the Cadillac CT4-V and CT5-V sedans appear a year from now.

With the CT6 now dead, this serves as a reminder that the brand’s Blackwing 4.2-liter V8 remains dead and likely futureless, while the name it once bore has now reverted into a lofty trim for Caddy’s remaining sedans.

Sales of General Motors vehicles sank 15 percent in 2019 — the automaker’s second straight year of annual sales pullback in that once promising market.

Maybe the product was the problem?

That seems to be GM’s thinking. On Wednesday, The General revealed its plan to capture market share in the world’s mos populous auto market with a raft of electric vehicles underpinned by its new modular electric vehicle platform, all powered by the company’s low-cobalt Ultium battery technology.

The Cadillac Lyriq’s final production form remains unknown, but the “show car” revealed late Thursday is said to be a fairly close representation of the real thing. That show car is also not far removed from a conceptual rendering released in January 2019, previewing a vehicle that will enter production in late 2022 as a 2023 model.

A lot can happen in the span of more than three and a half years: Buzz can wear off, unreleased products can grow outdated, rivals can catch up. Imagine if Chrysler’s “Suddenly, it’s 1960” collection of 1957 creations were first teased in early 1953.

Cadillac’s betting that the Lyriq’s attributes will remain fresh come roll-out time, and that could very well prove true.

Cadillac debuts its electric Lyriq crossover on August 6th, just a few short… well, at least a year or more before it goes into production as either a 2022 or 2023 model.

Hoping to generate Bronco-worthy levels of buzz that won’t materialize, the automaker released a couple of teasers of the upcoming vehicle, revealing a feature that causes this Canadian to tug his collar in an aggressive manner.

Here at TTAC World Headquarters, we’re all in lockstep agreement that Cadillac’s electric vehicle naming strategy is both awesome and timeless. Names like Lyriq and Celestiq defy any and all attempts at derision and joke-making.

With that lie out of the way, let’s move on to the next addition to the brand’s EV stable: Symboliq.

The decision to saddle the first all-electric Cadillac model with a name like “Lyriq” was made all the more eyebrow-raising when the second-in-line EV Caddy’s name cropped up: Celestiq. Stop it already! What’s going on here, many asked. While eager for a break from the de Nysschen days of alphanumeric gobbledygook, some were not ready for this particular naming convention.

So what’s the deal here? Cadillac explains.

“Lear-ick” or “lear-eek”? That’s the first question the Cadillac Lyriq brings to mind, the second being who, exactly, was behind the naming of this future electric crossover. Names matter, and if they don’t roll off the tongue easily, that’s a problem. At least for non-Italian brands…

But this writer digresses. On Thursday, which proved quite eventful in terms of product news, Cadillac decided to seek a little limelight of its own.

Cadillac is a brand beleaguered. Part of the reason is its misadventures in Crossover Land.

In a world where Acura, Lexus, and others are serving up premium crossovers at premium prices, and building competitive vehicles while so doing, Cadillac has served up something that’s more like a glorified Chevy.

That, obviously, is a problem.

A light dew suspends itself on finely manicured lawns as you glide past. Lucky Strike in hand, Miles Davis plays on the radio as you adjust the six-way power seat. At the office, the space in front of the door has your name on it.

The year is 1960, the winner of capitalism is you, and your car is the Cadillac Eldorado Seville.

Cadillac had become by far the top luxury car manufacturer in North America by the early 1970s, with the all-time pinnacle of Cadillac production reached in the 1973 model year: 304,839 ’73 Cadillacs purred off the assembly line. Then, well, the Yom Kippur War pissed off OPEC’s most important members, European luxury cars gained more than just a minor foothold, and Cadillacs became so commonplace that their prestige value sank for the rest of the decade.

Here’s a big, plush Sedan DeVille, from the final year of Cadillac’s undisputed reign over the American road, photographed in a Denver self-serve car graveyard earlier this year.

You’ve seen them lurking in your neighborhood. The suburban ninja. Clad head to toe in skintight black – usually from Lululemon, but other brands work here, too – they jog early in the morning and late at night, oblivious to the world beyond their AirPods. They’ll never jog on the sidewalk, either. They’re always in the street, ready to strike the hood of your car.

Drivers are taking back the streets, however, defending themselves and their precious rides by all means necessary. Cadillac has upped the game with the available Night Vision camera on the 2020 Cadillac XT6. No joke, the feature saved the good folks at Cadillac PR from headlines such as “Hack Journalist Slays Jogger.”

The race to fill every nook and niche within the crossover market is on. No gap between existing models is too small, as consumer demand for tall wagons seems insatiable. A crossover for every purse, right?

Cadillac has often been seen as trailing broad trends over the decades, and fittingly the lux brand from GM has been sedan-heavy of late. Still, the midsize XT5 has been selling well, so shrinking it a bit to fit more wallets makes sense. Thus, this 2019 Cadillac XT4 has appeared. Will it, like the marketers claimed years and years ago, become the standard of the world?

Say you’re an auto shopper of wealth and taste who has around $60,000 to spend. Now, let’s assume the usual options from Japan and Germany are not for you. Would you turn to America or Sweden to fill your luxury needs?

With the reveal of the CT5 out of the way, Cadillac has been working on getting the CT4 ready for the limelight. Debuting the whole fleet today, General Motors’ replacement for the Caddy ATS doesn’t seem too bad on paper. Unlike many luxury models positioned at the entry level, CT4 comes with rear-wheel drive and a minimum of 237 horsepower. It’s also a sedan ⁠— proving that Cadillac has yet to give up on car sales. While we’ve no idea if that’s prudent in a crossover-crazed society, it’s worth applauding.

CT4s will be separated into Luxury, Premium Luxury, and Sport trims with the CT4-V serving as a mid-grade performance option. Meanwhile, Blackwing variants will replace the V-Series as Cadillac’s top performance line.

In the late Eighties, American auto manufacturers still sold large, traditional luxury sedans in decent numbers. Their aging sedan consumer base fondly remembered the vinyl and chrome of yesteryear and still relished brougham-style accoutrements.

Up for consideration today are three comfortable, luxury-oriented sedans from 1988. It’s hard to lose here.

Earlier this year, on a cold winter’s evening in the city of Detroit, I snuck into a building in the Midtown area that I think is normally an art gallery, in order to see whatever Cadillac was showing at the North American International Auto Show.

I wasn’t party crashing because we’d been black-listed — I’d simply erroneously been under the impression that the event was open to all show-going media when it wasn’t. But I got in anyway.

What I saw wasn’t pleasant — a slab-sided three-row crossover called XT6 that didn’t exactly scream — or even whisper — “Cadillac.” My concerns for the brand’s present and future got worse.

Fast-forward seven months. I found myself on a plane to Washington, D.C. to drive the damn thing.

I always work to keep an open mind — what looks ugly on a show stand or on paper might actually prove to be well-built, well-priced, and a good vehicle to drive. Heck, even styling can look different in the real world as opposed to under auto-show lights.

Would the XT6 surprise me? Or would the doubt I expressed in the Motor City be borne out?

I spent part of my week in the nation’s capital so I could testify in front of Congress about a report I wrote.

Uh, sorry, that’s what Robert Mueller did. But I was there, mere blocks away in Georgetown, to drive the all-new Cadillac XT6.

When we stopped at a Virginia vineyard for lunch, Cadillac took the time to show us an updated version of the XT5 crossover (formerly known as the SRX).

Cadillac is hard at work preparing for the next generation of their big bruiser Escalade. Lincoln’s counterpart, the Navigator, makes a healthy 450 horsepower from its Raptor engine. How does Cadillac plan to compete? A new report suggest it’s going to get some help from the Camaro.

According to a posting from Muscle Cars and Trucks, the Escalade is going offer the supercharged V8 that powers the Camaro ZL1 and the Corvette Z06. While details are light on when this engine will go in, or what type of performance to expect, it is apparently going to be a “powerhouse.”

As we just covered yesterday, the V-Series application to the Cadillac CT4 and CT5 models will don intermediary performance models, similar to the former V-Sport line. The Blackwing nomenclature will designate top-performing models, redefining what the letter V really means to a Cadillac.

During the reveal of the 2020 CT4-V and CT5-V sedans, General Motors President Mark Reuss said, “Cadillac will make manuals in V-Series.” With four V-Series models across the two sedans, which are the likely candidates to receive three pedals?

With the launch of the new Cadillac CT4-V and CT5-V models, enthusiast balked at the mild power outputs and engine configurations. The CT4-V provides 320 horsepower from its 2.7-liter turbocharged four-cylinder mill, while the CT5-V’s turbo V6 makes 355 hp. Both figures are significant degradations from the previous ATS-V and CTS-V models, respectively.

Fear not, dear readers. The V-Series moniker has simply moved down-market, effectively replacing the V-Sport line. But this has made room for a new top-tier performance line: Blackwing.

Finding a Malaise Era Cadillac in a self-service wrecking yard is interesting, especially when it has Cadillac’s not-so-successful first attempt at a cylinder-deactivation engine. Those cars don’t make me sad, though.

A nicely customized show-car Cadillac with metalflake paint and pro-applied airbrush work in a junkyard — that makes me sad, even if it did suffer from the wretched V8-6-4 engine. I found this once-glorious Cad in a Denver-area yard last summer.

Auto manufacturers don’t always get things right on the first try. Altering existing product takes time and lots of money, two things which aren’t always easy for OEMs to pull together.

Today we ask: When did a vehicle change or evolve during its production, only to still fall short of expectations?

The Cadillac XT5, which happens to be a perfect all-weather urban vehicle, is a major breadwinner for the upscale brand. By far the best-selling vehicle in the Caddy stable, the XT5 midsize crossover out-volumes the bigger and pricier Escalade by a factor of two to one.

Unfortunately, it’s no longer the freshest face at the party. Cadillac’s smaller XT4 bowed last year and the larger XT6 dropped its towel in Detroit. Hoping to return some interest back to its midsize crossover (and have something to reveal in Chicago), Caddy gave the XT5 an emo makeover, launching the 2019 XT5 Sport package. It’s a “limited edition” package, Caddy claims, without offering a specific number. Could it be that it’s limited to the number of Sport packages GM can sell in 2019? Could be.

Today’s edition of Buy/Drive/Burn was generated by a discussion over at the TTAC Slack room. The conversation turned to sporty midsize luxury sedans from 2014, and one staff member regarded one of these choices with a “meh.”

Let’s see how you feel about them.

General Motors’ future passenger car lineup might not be as threadbare as initially thought. After sparking continent-wide hair pulling with its decision to shutter three assembly plants and cull six car models in the process, it seems the most prestigious vehicle of the bunch might live on after its plant goes dark.

The Cadillac CT6, which first hit U.S. sales charts in March of 2016, isn’t officially dead. It seems GM didn’t get its story straight back in late November, as Caddy’s flagship sedan might live on with another home base.

Everyone else is doing it. And, if lawmakers on this side of the Atlantic start going the way of their European counterparts, traditional American luxury will need a shot of cleanliness. Even if they don’t, a fickle U.S. public might suddenly fall in love with the green lifestyle and give a big middle finger to internal combustion road cruisers.

Not wanting to be left without a savior in this future scenario, and needing some electric American prestige to sell to discerning Chinese buyers, Cadillac unveiled this piece of emissions-free hardware on the eve of the North American International Auto Show. It’s not vaporware, General Motors insists.