The Audi S6 is about the same size and weight as the CTS-V, and it has standard all-wheel drive; however, its 5.2-liter V-10 engine makes only 435 horsepower and far less usable torque than the CTS-V's supercharged V-8.
The C63 AMG's driving feel is similar to that of the CTS-V—hefty on the road, but surprisingly crisp and responsive on the track—and despite its somewhat lighter weight, it makes do with about 100 less hp and, thus, isn't as fast.
The BMW M5 can get to 60 mph in about the same time as the CTS-V, by some accounts, and it comes with an impressive (or intimidating) set of electronic controls as part of M Drive, though its sticker price starts at around $85,000, about $25,000 more than the CTS-V.
The limited-production Lexus IS-F is another new competitor, with a 416-horsepower V-8, rear-wheel drive, and some serious track credentials, but the IS-F strikes out on one count: With no manual transmission, it's still a poseur to hard-core performance nuts.
|2009 Cadillac CTS-VBrowse Used Listings||2008 Audi S6Browse Used Listings||2008 BMW M5||2008 Lexus IS FBrowse Used Listings||2008 Mercedes-Benz C63 AMGBrowse Used Listings|
|15 MPG City / 24 MPG Hwy||14 MPG City / 19 MPG Hwy||16 MPG City / 23 MPG Hwy||12 MPG City / 19 MPG Hwy|
|Gas V8||Gas V10||N/A||Gas V8||Gas V6|
|4dr Sedan||4dr Sedan||N/A||4dr Sedan||4dr Sedan 6.3L AMG RWD|
|Rear Wheel Drive||All-Wheel Drive||N/A||Rear Wheel Drive||Rear Wheel Drive|
|4 Door Sedan||4 Door Sedan||N/A||4 Door Sedan||4 Door Sedan|