The Cadillac CTS-V is a high-performance version of the standard CTS. It is a series of mid-sized cars with a pushrod V-8 OHV engine and a sport-tuned suspension. The 4-door CTS-V sedan was introduced in 2004, and the CTS-V Sport Wagon and Coupe were introduced in 2010 for the 2011 model year. The sedan competes in the North American consumer market with such other high-performance, luxury sedans as the Audi RS6, BMW M5, Jaguar XFR, and Mercedes E63 AMG.
The second generation CTS-V is based on the new GM Sigma II platform. The rear-wheel-drive platform is the basis for the 2008 to present Cadillac CTS base model with which the CTS-V shares most of the body work. The suspension features coil springs front and rear. The front suspension is a Control arm arrangement while the rear is an independent Multi-link suspension. To improve the handling and comfort, the 2009 CTS-V uses BWI Group's MagneRide technology. The dampers, filled with magnetorheological fluid, are adjusted based on sensor readings that happen at 1 ms intervals. The sedan has four-wheel disc brakes similar to the first generation. The front brakes were increased in size to 14.96 in (380 mm) ventilated discs with six piston Brembo fixed calipers. The rear brakes are 14.68 in (373 mm) ventilated rotors with four piston calipers. Steering is speed-sensing hydraulic-assist rack-and-pinion. The steering ratio is 16.1:1. Tire sizes are 255/40ZR19 front and 285/35ZR19 rear on 19×9.0 inch and 19×9.5 inch wheels front and rear.