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2006 Cadillac STS
The 2006 STS is a 4-door, 5-passenger luxury sedan, or luxury sports sedan, available in two trims, the V6 and the V8. The 2006 STS's closest competitors include the Audi A6, the Lexus GS 300, and the Volvo S80.
Upon introduction, the V6 is equipped with a standard 3.6-liter, V6, 255-horsepower engine that achieves 18-mpg in the city and 27-mpg on the highway. The V8 is equipped with a standard 4.6-liter, V8, 320-horsepower engine that achieves 17-mpg in the city and 26-mpg on the highway. A 5-speed automatic transmission with overdrive is standard on both trims.
The 2006 STS is a carryover from 2005.
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