Cadillac CTS-V unveiled at 2015 Detroit auto show (pictures)

Caddy starts by dropping the 6.2-liter supercharged V-8 from the Corvette Z06 into the sedan's waiting engine bay.

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In this incarnation, the engine is good for 640 horsepower and 630 pound-feet of torque.

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That power flows through a single-option eight-speed automatic transmission.

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Torque meets the road at the rear axle where it is split between port and starboard by a standard electronic limited-slip differential.

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Big 19-inch wheels are filled with Brembo brakes. Six-piston calipers grip at the front while four-pots stop the rears.

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The CTS-V is wider and lower than the standard sedan.

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The LED daytime running lights flow directly into the LED vertical fog lights.

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Inside, the V is sporty but still feels as luxurious as a Cadillac should.

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The automaker's Cue infotainment tech is featured in the center of the dashboard.

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Drive modes for street, sport, snow and track change and tweak the CTS-V's driving characteristics.

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A full complement of driver-aid tech will also be offered on the 2016 CTS-V.

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With a big trunk, this Caddy can haul cargo while it hauls ass.

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For now, Cadillac is offering the CTS-V only as a sedan. There probably won't be coupe or wagon variants.

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