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Cadillac CT6 beefs up with 400-hp twin-turbo V6

Cadillac's engine lineup is set to get a makeover led by the potent powerplants under the hood of the CT6. Our man Steven Ewing is onsite at an event in Detroit reporting all the details. Here's what we know so far: The CT6's top engine will be a 3.0-liter twin-turbo V6. It's the first twin-turbo with cylinder deactivation, which essentially makes the V6 able to convert to a V4 unit. Power will be 400 horsepower at 5,500 rpm and 400 pound-feet of torque at just 2,500 rpm. No word on what a potential CT6-V would get. The CT6 will also have a naturally aspirated V6 that Cadillac is claiming to be all-new. It's rated at 335 hp at 6,800 rpm and 284 lb-ft at 5,300 rpm. That's an improvement of 14 hp and nine lb-ft compared with today's 3.6-liter V6, and fuel economy increases nine percent. Cadillac says it's the highest output for a naturally aspirated V6 that's SAE-certified and runs on regular fuel. Both of these V6s will have stop/start technology and will be paired to with eight-speed automatic transmissions. The 3.6-liter V6 will also be used in the 2016 CTS and the 2016 ATS. Meanwhile, Ewing reports that Cadillac says the ATS-V is actually more powerful than initially announced, though there are no numbers to flesh that claim out as yet. The brand also plans to offer four- and six-cylinder diesel engines in various vehicles and new V8 options. The CT6 bows at the New York Auto Show. It will use an aluminum-intensive body that reduces weight by 198 pounds compared with a steel setup and continues Cadillac's creased design language used on the CTS and ATS models. The CT6 goes into production late this year in Detroit. Related Video: Cadillac Next-Gen V-6 Engines Led by 3.0L Twin Turbo Segment-leading power, efficiency in world's most advanced six-cylinder DETROIT – Cadillac today announced a new generation of V-6 engines, led by an exclusive Twin Turbo V-6 that will be one of the industry's most advanced six-cylinder gasoline engines. It leverages the latest technology to balance efficiency, performance and refinement in the upcoming, top-of-the-range CT6 luxury performance sedan. The all-new Cadillac 3.0L Twin Turbo is designed to achieve new thresholds of refinement and specific output for the brand's new prestige luxury sedan, which makes its world premiere March 31, at the New York International Auto Show. Production begins late this year at General Motors' Detroit-Hamtramck Assembly Plant.

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.

Cadillac gives enthusiasts an early look at its next high-performance sedans

Cadillac will introduce a pair of sport sedans named CT4-V Blackwing and CT5-V Blackwing, respectively, at 7 p.m. Eastern today (February 1). While car companies routinely drum up excitement for new models by releasing tightly-cropped or blacked-out images, Cadillac surprised us with a photo, and a TV spot that aired during the Rolex 24 at Daytona, that shows both cars in their entirety. Somewhat confusingly, the CT4-V and the CT5-V are not direct replacements for the ATS-V and the CTS-V; they're mid-range models, and they're powered, equipped, and priced accordingly. It's these flagship Blackwing variants that will pick up where the last-generation Vs left off with a significant bump in power, numerous chassis tweaks, and a more aggressive-looking design. They'll arrive in showrooms in time for the 2022 model year. Blackwing drivers won't draw unnecessary attention to themselves, because the visual changes are relatively subtle. Riding on model-specific wheels, the CT4-V Blackwing gains bigger air intakes on the front end, vents punched into the fenders, and a low-key body kit that adds a front splitter, front winglets, and a trunk-mounted spoiler. Cadillac gave the CT5-V a similar treatment, and it mounted the rear wheels on surprisingly wide tires. Cadillac pointed out the Blackwing sedans benefit from the world's fastest-reacting suspension system. It's likely the fourth evolution of its magnetic ride control technology, which it detailed in October 2020.  While full specifications remain under wraps until the duo's unveiling, we know that both sedans will be available with a six-speed manual transmission. It's reasonable to assume that an automatic (likely the familiar 10-speed) will be offered as well. As for what's under the hood, our crystal ball tells us that the CT5-V will land with a V8 engine, though it won't be the short-lived twin-turbocharged Blackwing unit that gave both cars their name. Enginers might have selected an evolution of the CTS-V's 6.2-liter. As for the CT4-V, it will receive the ATS-V's 3.6-liter turbocharged V6. Both models will be exclusively available with rear-wheel-drive. Enthusiasts who want to secure an early built slot will have the chance to reserve a 2022 CT4-V Blackwing or a 2022 CT5-V Blackwing by visiting Cadillac's website shortly after the sedans are unveiled on February 1. As we previously reported, the first 250 units of each car will wear a numbered plaque on the steering wheel.