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2016 Cadillac CT6 Powertrains Detailed

New 3.0-liter twin-turbo V-6 makes 400 hp, 400 lb-ft.

Cadillac has released information on the 2016 Cadillac CT6's powertrain options ahead of the luxury sedan's official debut in New York. Two of the three engines are part of a new GM powertrain architecture: a 3.6-liter V-6 with 335 hp and 284 lb-ft of torque, and a twin-turbo 3.0-liter V-6 with 400 hp and 400 lb-ft of torque. The CT6 will also use a version of GM's 2.0-liter turbocharged four-cylinder, though we don't yet know specifics on this engine.

Both new V-6 engines feature an aluminum block, higher-flow cylinder heads, a new two-stage oil pump, and efficiency-enhancing features like cylinder deactivation and engine start/stop. The updated 3.6-liter V-6 will be offered in the 2016 Cadillac CTS and ATS sedans along with the CT6, while the twin-turbo 3.0-liter is reserved for the top-of-the-line CT6, at least for now.

The new 3.0L twin-turbo V-6 for the CT6 will use GM's existing 8L90 eight-speed automatic that's currently used in conjunction with the company's 6.2-liter V-8 and 3.6-liter twin-turbo V-6 engines. The 3.6-liter V-6 and 2.0-liter four-cylinder will be paired with a new 8L45 eight-speed automatic transmission that's essentially a scaled-down version of the existing, higher-capacity eight-speed. The smaller 8L45 eight-speed reportedly fits into the same space as the previous six-speed automatic, and weighs 33 pounds less than the 8L90 transmission. This new 8L45 eight-speed will also pair with the 2.0-liter turbocharged four-cylinder and 3.6-liter V-6 engines in the 2016 Cadillac ATS and CTS sedans.

The 2016 Cadillac CT6 will also offer a new all-wheel-drive system that features a more compact and efficient design. It will feature three different drive settings, and is said to be optimized for a maximum torque output of 958 lb-ft. This high torque threshold means that we may eventually see future Cadillac V-Series models with all-wheel-drive now that this system can handle high-output applications.

Stay tuned for more information on the 2016 Cadillac CT6 luxury sedan as we near its official debut on March 31 in New York.