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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.

Cadillac gives ATS, CTS new V6 for 2016

Replacing the existing 3.6-liter V6 in the Cadillac ATS and CTS is... another 3.6-liter V6. But this one promises higher output, while consuming less fuel, and making less noise. Like the V8s in the CTS-V and Escalade, it's got cylinder-deactivation technology to cut it down to a four-pot under lighter loads, as well as automatic stop/start, and comes mated to an eight-speed automatic transmission. The new engine produces 335 horsepower and 284 pound-feet of torque. That's a modest improvement over the 321 hp and 275 lb-ft mustered by the unit it replaces. But it also delivers an approximate improvement of nine percent in fuel economy and eight percent in carbon emissions. That's what we'd call a win-win, even if it's a modest one. Of course, those ATS or CTS buyers attracted to higher efficiency will still likely go for the 2.5-liter inline-four or the 2.0-liter turbo four. And those more inclined towards performance will be tempted by the 3.6-liter twin-turbo V6 in the ATS-V or CTS Vsport – or the 6.2-liter supercharged V8 in the CTS-V, for that matter. But those customers looking for the best of both worlds will surely be pleased by the improvements the new atmospheric V6 and 8-speed gearbox bring to the table. Related Video: New Technologies Boost Efficiency for 2016 CYLINDER DEACTIVATION AND START/STOP SYSTEMS BEGIN PRODUCTION ON ATS AND CTS PRODUCT LINES 2015-10-09 Renowned for luxury and design, Cadillac has recently added dynamic driving performance to its list of attributes. Now as 2016 model year production begins, Cadillac adds new fuel-saving technologies. Active Fuel Management and Automatic Stop/Start technologies, and widespread use of a new 8-speed transmission, are combining to raise fuel economy ratings and reduce emissions in Cadillac's portfolio. Cadillac's all-new six cylinder engine contains Active Fuel Management, or cylinder deactivation, technology enabling it to seamlessly switch from six-cylinder to four-cylinder operation under certain light-load conditions, while maintaining excellent performance. The new 3.6-liter engine is part of the 2016 ATS and CTS product lines. Additionally, the Cadillac Escalade luxury SUV's V8 will shift to four-cylinder operation in many daily driving conditions, as will Cadillac's all-new high performance CTS-V sedan.

Cadillac recalls ELR coupe over stability control problems

Cadillac is recalling about 656 2014 ELR models made between September 26, 2013 and February 14, 2014, because of a fault with the electronic stability control system. On cars without adaptive cruise control, it's possible that diagnostics could prevent the system from telling the driver if ESC is on or off.
Cadillac has a software fix ready and repairs begin on April 17. Alan Adler, General Motors' recall and legal spokesperson, tells Autoblog that only about 55 of the affected cars are in the hands of owners. The rest are either on dealer lots or still at the factory. There have been no reported injuries or crashes caused by the fault.
The correction for the stability control system involves a software recalibration of the electronic brake control module that takes around 20 minutes to perform. While they use the same platform, the Chevrolet Volt isn't involved in this recall because it "uses a different a brake control module," said Adler.