The 2010 Cadillac STS is a luxury midsize sedan that's part of the car's second generation. It offers a choice between a 3.6-liter V6 engine, churning out 302 horsepower, and a potent V8 with 320 horsepower in the STS V8 trim. The V6 models feature a rear-wheel-drive setup, with all-wheel drive as an option, while the STS V8 comes standard with all-wheel drive. Both engines are paired with a six-speed automatic transmission. Available trims include V6 Luxury Sport, V6 Luxury, and the V8. Inside, standard features include an 8-inch touch screen, Bluetooth, satellite radio, BOSE sound system, and navigation. Safety features include a stability control system, antilock brakes, traction control, and an array of airbags. However, the car lacks some modern safety technologies like lane-keeping assist and adaptive cruise control.