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The Cadillac STS represents an American challenge to the technology, quality and great driving attributes of the high-end imports. Available with rear-wheel or all-wheel drive, with engines ranging from a responsive and efficient V6 to a supercharged V8, the STS delivers a lot of luxury, technology and performance with a wide range of drivetrain and powerplant choices.The 3.6-liter direct-injection V6, developing 302 horsepower and matched with a six-speed automatic transmission, is standard equipment. There is also a 4.6-liter V8 with 320 horsepower and, at the top, the supercharged 4.4-liter V8 of the STS-V that makes 469 horsepower and delivers stunning performance. All STS engines are of aluminum construction, have double overhead camshafts and four valves per cylinder and benefit from variable valve timing to enhance both performance and operating efficiency. STS 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 as well as brake and throttle control to avoid dangerous skids. The interior of the STS is superb, with comfortable but supportive seats that are infinitely adjustable, ample storage space, and superior sound systems. State-of-the-art occupant safety comes standard as well. Entertainment systems include 15-speaker Surround Sound. The STS is unmistakably a Cadillac, but it's also a four-door performance sedan for people who like to drive. The STS offers a choice of suspensions, from the standard setup designed for smooth, comfortable commuting to an active performance suspension that instantly adjusts to any driving situation, whether cruising through a sea of potholes or accelerating around a sweeping turn. Rear-wheel drive provides the balance and control that serious enthusiasts demand, while all-wheel drive can be very beneficial in bad weather. Changes to the STS for 2009 are minor.
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