2010 BMW M5

2010 BMW M5A phenomenal engine such as the 2010 BMW M5's race-bred 500-horsepower V10 is typically enough to win enthusiasts over. Look at the muscle car era, for example -- its beloved icons are little more than enormous V8s strapped to the bare minimum in rubber, sheet metal and suspension bits. In the realm of super-sedans that cost close to $90,000, though, the stakes are considerably higher,