Cadillac released details of their new generation of twin-turbo V6 engines which will make debut in the 2016 Cadillac CT6. Designed to achieve “new thresholds of refinement and specific output,” the new powertrain is rated at 400 horsepower (298 kW) and 400 lb-ft of torque (543 Nm).

That will make this 3.0 liter unit one of the most power-dense V6s in the world with 133 horsepower (99 kW) per liter. But this engine is not all about power. Fuel economy is another highlight of it, and it is taken care of by employing cylinder deactivation and stop/start technologies. It’s a fairly complex engine then, but the advantages are huge.

Other highlights of Caddy’s twin-turbo V6 include turbochargers with lightweight, low-inertia titanium-aluminide turbine wheels and an efficient, patented low-volume charge-air cooler, which contribute to optimal boost production and more immediate power delivery.

In the 2016 Cadillac CT6 this engine will be mated to the Hydra-Matic 8L90 eight-speed automatic transmission. Production begins late this year at General Motors’ Detroit-Hamtramck Assembly Plant.

“Cadillac’s elevation on the world stage is driven in great part by its advanced powertrain technology and the all-new 3.0L Twin Turbo powers past the traditional segment leaders with higher degrees of the performance and refinement their reputations were built on,” said Rich Bartlett, assistant chief engineer.