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Cadillac will give the CT6 a major power upgrade because the new V-Sport model will be the first vehicle to get a direct-injected 4.2-liter biturbo V8 that will pump out 550 horsepower (410 kilowatts) and 627 pound-feet (850 Newton-meters) of torque in the top output. There will also be a 500-hp (373 kW) version.

Caddy reports the mill has a completely clean-sheet design. The engineering put an emphasis on keeping the packaging compact but still producing plenty of performance. The mill features a so-called "hot V" where the exhaust exits from the valley between the heads, rather than on the outside like on most V8s. The company also integrates the two twin-scroll turbos into the exhaust manifolds at the top of the engine. Cadillac reports that this setup creates a tighter package and reduced turbo lag.



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CT6 V-Sport To Get 550HP BiTurbo 4.2 Liter V8 Engine

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