Next-Gen V6 Engines To Appear In Upcoming Cadillac CT6

Cadillac is slowly leaking out details of its upcoming range-topping CT6 model
ahead of the vehicles’ debut at the New York International Auto Show on March 31.

The brand today announced the new vehicle will feature pair of new V6 engines, a brand new 3.0L twin-turbo V6 and and an all-new version of the naturally aspirated 3.6L V6.

The big news here is the new 3.0L V6, which produces a hefty 400hp and 400lb-ft of torque. If you think that’s a lot of power for a small V6, you’d be right. Kicking out 133hp per litre Cadillac says its one of the most power-dense V6 engines in the world.

The 3.6L V6 is no slouch either and produces a healthy 355hp and 284lb-ft of torque. While both engines deliver loads of horsepower and torque, they were also designed to deliver class-leading efficiency and refinement.

Both engines boast the latest technology like feature direct-injection, cylinder deactivation and start-stop technology to help maximize efficiency.

All of these features have never been combined before on a turbocharged engine: the 3.0L twin-turbo V6 is the only six-cylinder engine in the world to combine turbocharging with cylinder deactivation and stop-start technology.

Cylinder deactivation, as seen on many other GM vehicles, shut downs two of the cylinders when they aren’t needed and seamlessly reactivates them when the driver demands more power. Start-stop shuts down the engine while at stoplights to conserve energy. Cadillac estimates the combination of the two will boost fuel economy more than six per cent.

Both engines will be mated to an all-new Hydra-Matic 8L90 eight-speed automatic transmission.

Both engines are also extremely quiet, too: the 3.0L twin-turbo is up to 5 dB quieter than the Audi 3.0L TFSI engine, while the 3.6L is up to 4 dB quieter than the Infiniti 3.7L V-6.

Both of Cadillac’s new V-6 engines will be produced at GM’s Romulus Powertrain Operations assembly facility in Michigan, which received a $540-million investment to build the next-generation V-6 engines.

Stay tuned for more details on the hotly anticipated CT6.

Mar 20th, 2015