2006 BMW 5-series 530i Front

BMW's mid-size model enters its third year on a big power trip. Both six-cylinder engines enjoy the same boosts as on the 3-series, now marked at 215 and 255 horsepower on 525i and 530i. At the higher end, the 545i just became 550i thanks to inheriting the 7-series' new 360-horsepower 4.8-liter V8. And at the even-higher end, the 500-horsepower V10-powered M5 is finally here. Prices begin at 85 big ones.