2014 Cadillac Ats Luxury Rwd on 2040-cars

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2020 Cadillac XT6 fuel economy announced

Thanks to the EPA's fuel economy website, we finally know how frugal the 2020 Cadillac XT6, the brand's first three-row crossover, is with gasoline. The most efficient is the front-wheel-drive version, getting 18 mpg in the city, 25 on the highway and 20 in combined driving. The all-wheel-drive XT6 is just barely behind it with 17 mpg in town, 24 on the highway, and 20 combined. Both versions share the same 3.6-liter V6 with 310 horsepower and 271 pound-feet of torque and the same nine-speed automatic transmission. These numbers put the Cadillac XT6 very much on par with the competition. Both the four-cylinder and V6 versions of the Audi Q7 get 21 mpg combined, just beating the XT6, and both feature standard all-wheel drive. The Q7 with an inline-four makes less power at 255 horses while matching the XT6's torque at 273 pound-feet. The V6's 329 horsepower and 325 pound-feet beat the Caddy, though. Both Audi and Cadillac have almost the same starting price at about $53,000. Every version of the Acura MDX tops the XT6, including the least-efficient MDX A-Spec, which manages 21 mpg in combined driving. The non-A-Spec all-wheel-drive model gets 22 mpg combined, and the front-drive MDX hits 23 mpg. But the best is the Sport Hybrid that delivers 27 mpg combined. All of the non-hybrid MDXs are less powerful and less torquey than the Cadillac, though, at 290 horsepower and 267 pound-feet of torque. The Sport Hybrid is a bit more powerful and torquey than the Cadillac with 321 horsepower and 289 pound-feet of torque. The Acura does start at a lower price of just over $45,000. The XT6 does beat one of its three-row crossover rivals, though. Its 20 mpg combined rating is comfortably ahead of the Mercedes-Benz GLS-Class's most efficient V6 version at just 18 mpg. But the Mercedes also delivers 362 horsepower and 369 pound-feet of torque, and there are even more powerful, but less efficient, V8s on offer. The Mercedes is much more expensive than the Cadillac with a base price of over $70,000.

Junkyard Gem: 1981 Cadillac Eldorado with V8-6-4 engine

Skyrocketing fuel prices caused by geopolitical events in 1973 and 1979 led to gas lines, federal fuel economy requirements, and an increasing reluctance on the part of American car shoppers to buy big, thirsty Detroit luxury machines. General Motors had pulled off some amazing technological feats in the past — the small-block Chevrolet V8 engine and Hydramatic transmission being two extraordinarily successful ones — and so Cadillac's bosses figured that a combination of computer wizardry and clever mechanical engineering would give the 368-cubic-inch Cadillac V8 a cylinder-deactivation system and resulting superior fuel economy. Here's a very rare example of one of those 1981 Cadillacs, found in a California self-service wrecking yard. The idea behind the V8-6-4 was that computer-controlled solenoids would physically disengage the rocker arms for one or two cylinders on each engine bank under low-load conditions, converting the engine from a 368-cube V8 to a 276ci V6 or 184ci V4 (that's 6.0, 4.5 or 3.0 liters, respectively, for the metric-system aficionados among us). This sort of variable-displacement magic is commonplace today, but it was science-fiction stuff in 1981. An "MPG Sentinel" display on the dash would let the driver know how many cylinders were active at the moment, and the car would get Chevy Citation fuel economy with Cadillac luxury. The V8-6-4 was the standard engine in all 1981 Cadillacs (except for the Seville, which had the troubled Oldsmobile diesel engine as the base powerplant and the V8-6-4 as an option). Unfortunately, the V8-6-4 worked about as well as the Oldsmobile diesel: very poorly. Within a few years, most owners of these engines had disconnected the rocker-deactivation solenoids and just drove their cars as regular full-time V8s. This one has the snazzy "Cabriolet Roof Treatment" option, which boasted "textured elk grain" vinyl and could be had in one of 17 available colors. Front-wheel drive gave the early-1980s Eldorado plenty of interior space, despite its more proletarian Olds Toronado origins, and these velour-covered seats made for very comfortable road trips. The price tag started at $17,550, or about $51,650 in 2019 dollars. The 1981 Imperial went for $18,311, and that car was based on the same platform as the lowly Plymouth Volare. Meanwhile, A BMW 733i cost $28,945 and a new Toyota Cressida a mere $11,599. The 1981 Cadillacs were just a little too much ahead of their time, it turned out.

Roll pins in recalled 2014-2015 Cadillac CTS V-Sports could crack

General Motors has issued a recall for select 2014-2015 Cadillac CTS V-Sport sedans due to roll pins in the rear differential that could crack. The recall only affects 2,866 vehicles, but it is expected that 100% of those vehicles have the defective parts. According to NHTSA Campaign No. 20V038000, 2014-2015 CTS V-Sports built between July 1, 2013 and May 15, 2015 have roll pins in the rear-axle differential that could "fatigue" and "fracture." If these pins were to break while the vehicle is in motion, it could cause the rear to lock up, which might create a potentially dangerous driving situation. In September 2019, a GM engineer noticed a forum discussion about the problem with the V-Sports, which can be easily identified by their twin-turbo 3.6-liter V6 engines. Because he had dealt with similar issues with his own personal vehicle, he submitted a report, and an investigation was opened the next month. To make good with its customers, GM has promised to replace the rear differentials on all affected vehicles. The recall report says the roll pins in the replacement parts will have "increased strength" and a double-shear design rather than the original single-shear design.  GM plans to send customers recall identification notices starting March 9, 2020.