The Cadillac CTS-V Coupe is an American luxury two-door with a 556-hp V-8 and a six-speed manual transmission. It hits 60 mph in 3.9 seconds. The CTS-V Coupe shares its magnetorheological dampers with the CTS-V Sedan, allowing it to maintain reasonable comfort while offering the kind of road-gripping performance that makes it the fastest production sedan on the road. And like the CTS-V sedan, there's an atomic weapon under the hood. The "-V" in CTS-V represents a supercharged 6.2-liter LSA V-8 pumping out 556 hp and 551 lb-ft of torque through the rear wheels. It does so via a six-speed tranny with a third pedal — the kind of details you associate with a limited-edition exotic grand-touring car, not a Cadillac. Get ready for some serious fun with this one!