The Cadillac STS is an American challenge to the technology, quality and great driving attributes of the high-end imports. The STS features responsive engines and, like all great luxury cars, uses rear-wheel drive. Factor in its comfortable cabin and comprehensive range of features, and the STS delivers a lot of luxury, technology and performance. The 3.6-liter V6 with direct-injection developing 302 horsepower is standard equipment with a 6-speed automatic transmission. Safety technologies include Cadillac's Lane Departure Warning and Side Blind Zone Alert systems, plus a sophisticated StabiliTrak electronic stability control system that uses steering and other inputs, and brake and throttle controls, to reduce the chance of a dangerous skid. The roomy cabin is superb, with comfortable, supportive seats that are infinitely adjustable, ample storage space, and superior sound systems, including 15-speaker Surround Sound. Standard STS features include leather upholstery, aluminum interior trim, dual-zone automatic climate control, Bose AM/FM/CD stereo, interior auto-dimming rearview mirror, OnStar telematics, StabiliTrak electronic stability control, automatic high-beam control (Intellibeam) for the headlights, rear park assist and the usual lineup of power assists, creature comforts, extra conveniences and driver aids.