Though a luxury car, Cadillac's Seville STS feels, at times, like a hot rod. Its muscular good looks are backed up with one of the best powertrains on the market, a 300-horsepower Northstar V8. The Seville STS and SLS are comfortable luxury sedans, however. They come loaded with features and technology designed to improve comfort, safety and performance. Cadillac's StabiliTrak system has been significantly enhanced for 2000 and is smart enough to respond to a skid before you're even aware there's a problem. Completely re-engineered for 2000, the Northstar engines for both the STS and SLS models are quieter, cleaner and more efficient than last year.