2013 Buick Enclave on 2040-cars

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1969 Chevrolet Chevelle vs 1987 Buick GNX in Generation Gap showdown

Generation Gap generally tries to adhere to a theme for each episode, and for the final video from the Lingenfelter collection, the series might have its best idea yet - limited-production muscle cars from General Motors.
On one side you get a 1969 Chevrolet Chevelle COPO, and it's an absolute sleeper. Other than the SS wheels, this classic coupe looks practically bone stock, at least until the engine fires up. Under the hood is a 427-cubic-inch (7.0-liter) V8 making a claimed 425 horsepower and 460 pound-feet of torque. This was the sole year for the COPO package on the Chevelle, and Chevy only made about 323 of them.
The Chevelle's challenger is almost as rare and arguably just as cool. The 1987 Buick Grand National GNX looks just as mean today as when new. It eschews a traditional muscular V8 in favor of a 3.8-liter turbo V6 making a claimed 276 hp and 360 lb-ft, although that number is supposedly a bit underrated. Also, just 547 examples of the GNX version were ever built making it quite a collector's item too.

2018 Buick Enclave: How engineers made it larger, lighter, more sophisticated

Buick used the unveiling of the 2018 Enclave at the New York Auto Show to introduce its new range-topping Avenir sub-brand to the world. With fancier interior finishes and exterior details, it's Buick's latest effort to make itself a proper luxury brand (or perhaps re-establish itself as such). However, lost in the Avenir song and dance is the fact that the 2018 Buick Enclave is a (very) long-awaited all-new model regardless of the trim level one selects. Like the Chevrolet Traverse upon which it is based, the new Enclave is bigger than the vehicle it replaces but considerably lighter, by about 400 pounds. "We told every engineer, 'get your job done, but then take the weight out,'" said engineer Rick Spina as we hovered next to his larger yet lighter creation. His team therefore set about taking a little bit of weight out from just about everywhere, from using additional aluminum in the suspension to varying the thickness of the frame (thicker in places that needed to be stronger, thinner and therefore lighter in places that didn't). Only about 100 pounds came out of the body with the rest coming from elsewhere. Not only will the reduced weight improve fuel economy (Buick-estimated at 19 mpg combined with FWD versus 18 for the 2017 model) and presumably the old Enclave's rather ponderous handling, but it should only make things easier for the new powertrain: General Motors' now-familiar 3.6-liter V6 and its latest nine-speed automatic. With 302 horsepower and 260 pound-feet of torque, Buick says the new engine will need 7.2 seconds to reach 60 mph with FWD or 7.5 seconds with AWD. That's a second quicker than before. Besides acceleration, towing is also bumped up by 500 pounds to 5,000. For those models with all-wheel drive, the Enclave has the same basic system featured on range-topping versions of the Buick LaCrosse. Besides power being sent front and rear, it can also differ from right to left in the back, although Spina is quick to point out that capability is for traction-enhancing purposes rather than sporty, handling-enhancing torque-vectoring ones. Buick owners already appreciated the Enclave for its quietness so the engineers decided to take it that much further. This included altering the exhaust, improving body sealing (there are triple door seals), including active sound deadening and utilizing advanced materials that absorb sound as opposed to simply being thick, dense and heavy enough to keep it out.

Junkyard Gem: 1962 Buick LeSabre 2-Door Sport Coupe

American car shoppers looking for a full-sized hardtop coupe in 1962 couldn't go wrong with the offerings from The General. Chevrolet would sell you a snazzy new Bel Air sport coupe for just $2,561 (about $23,800 today), but those Joneses next door wouldn't have felt properly shamed if you put a new proletariat-grade Chevy in your driveway. No, to really stand tall during the era of Alfred Sloan's Ladder of Success, you had to go higher up on the GM food chain. For the B-platform full-sized cars of 1962, that meant the Pontiac Catalina/Bonneville beat the Chevy, the Oldsmobile 88 was the next step up the ladder, and at the very top was the Buick: the hot-rod Invicta and its swanky LeSabre sibling. To go beyond that, you had to move up to a C-platform Buick Electra or Cadillac. Today's Junkyard Gem is a once-luxurious '62 LeSabre, now much-faded in a northeastern Colorado boneyard. The reason GM shoppers got so bent out of shape about the "Chevymobile" episodes of the late 1970s, in which some GM cars received engines made by "lesser" GM divisions, was that each division had its own family of V8 engines during the 1950s and 1960s and they weren't supposed to be mingled. The '62 LeSabre got a 401-cubic-inch (6.5-liter) Nailhead engine (so called because the valves were unusually small), rated at 265, 280, or 325 (depending on what kind of compression ratio and carburetion you wanted). That's not crazy horses for a big-displacement, two-ton luxury coupe of its era, but the small valves allowed for combustion chambers optimized for one thing: low-rpm torque. This 401 has the two-barrel carburetor, so it made either 412 or 425 pound-feet of torque. That's just a bit less than the mighty Cadillac's engine that year, and definitely sufficient to get this car moving very quickly. You had to pay a fat premium on the Chevrolet, Pontiac, and Oldsmobile B-bodies to get an automatic transmission (a three-speed column-shift manual was base equipment in those cars), but a Turbine-Drive (formerly known as the Dyna-Flow) automatic was standard issue on the 1962 LeSabre. This was an interesting transmission design that traced its origins back to the 1942 M18 Hellcat Tank Destroyer and used torque-converter multiplication to provide a CVT-like experience with no perceptible shifts (the driver could select a separate low gearset manually, so the shifter looks just like the one on the true two-speed Powerglide transmission).