By on May 2, 2019

After becoming the preferred choice for manufacturers delivering both mainstream autos and high-end performance vehicles, the V6 is starting to lose ground to its inline counterpart. Numerous automakers are replacing twin banks with one long one.

Despite the V6’s packaging advantages, mild hybridization and the standardization of modular engines has made the more-affordable straight six increasingly viable. Environmental regulations have also convinced many automakers to downsize, leaving large automobiles with V8-sized engine bays that can more easily accommodate a longer unit with fewer cylinders.

While Mercedes-Benz is probably the automaker best known for helping the I6’s resurgence, it’s not alone. Jaguar Land Rover is also abandoning the V6 for something straighter. Having already shown off its next-gen mill inside the Range Rover Sport HST, the brand now plans to install it in its flagship SUV for the 2020 model year.  (Read More…)

By on March 11, 2019

1994 Volvo 960 in California wrecking yard, RH front view - ©2019 Murilee Martin - The Truth About CarsWhile I live in Denver, my family and work ties in the San Francisco Bay Area make me a regular visitor at the incredibly well-stocked self-service wrecking yards of the region between San Jose and Richmond. These yards don’t have quite the selection of Subarus and IHC Scouts that I see in the yards around Denver, but they make up for that shortage by stocking plenty of BMWs, Mercedes-Benzes, and Volvos.

Just last week, I found a half-dozen 240s, a 780 Bertone Coupe, and a pair of 960 sedans… in a single yard. Here’s the better-preserved of the two 960s. (Read More…)

By on January 7, 2019

1953 Pontiac in Colorado wrecking yard, LH front view - ©2019 Murilee Martin - The Truth About CarsMore pre-1960 vehicles than one might think show up in the big U-Wrench wrecking yards; you won’t find a ’55 Chevy coupe, but I’ve seen Nash Metropolitans, a ’55 Buick, a ’49 Dodge, a ’58 Edsel, a ’53 Willys, and a ’50 Studebaker in recent years, and that’s just a small sampling. Today’s Junkyard Treasure is a ’53 Pontiac Chieftain sedan in very solid condition, photographed in a Denver-area self-service yard last week. (Read More…)

By on March 11, 2018

While the United States’ obsession with massive V8 engines was picking up steam, Britain was falling in love with the inline six. In the years following World War II, Aston Martin was acquired by David Brown for a pittance and entered into the era that would define it forever. This era included the engine stylings of Tadek Marek — a man with a serious penchant for the straight six. Eventually both Aston and Marek would move on to motors with more cylinders, but the company would still hold onto the inline six until the new millennium as an entry-level option. It’s last application was on the base-model DB7.

Unless you count the DB4’s continuation, we’ve not seen any Aston Martin hosting a straight-six configuration since then. However, the company recently let slip that it’s talking about borrowing one from Daimler. Specifically, the turbocharged 3.0-liter from Mercedes-AMG.  (Read More…)

By on November 28, 2016

Jaguar straight 6 engine

As a parent of two young children, I watch a lot of movies at home. Most of the blockbuster movies I’ve watched this year are remakes. This month alone, I watched Ghostbusters, Star Trek Beyond, and Star Wars: The Force Awakens. All three are part of franchises that died a decade (or more) ago and have been reborn successfully in 2016.

In the same way, inline-six engines have returned to Mercedes-Benz after nearly a 20 year hiatus in North America.

Why are straight six engines making a comeback?

(Read More…)

By on December 29, 2011

 

Earl writes:

I just bought a mint condition, dealer-maintained 1990 Cressida. I am aware of the head bolt torque issue on the 6 cylinder engine. The car shows no sign of head gasket issues. My question: should I have my dealer simply re-torque the head bolts? Their tech (30-year’s experience) says he’s done this on many cars with no issues. Your thoughts? (Read More…)

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