We'll be perfectly honest: the first thing running through our heads as we were passed the other day by an Audi R8 doing roughly 110mph wasn't "Hey, that thing needs more power." Yet that's exactly what you'll find in the new Audi R8 GT ($256,000). This super-villain version of Audi's flagship sports car features 560 hp, up from 525 in the "stock" model, a curb weight that's 220 lbs. less than the normally aspirated version, a zero to 62 time of 3.6 seconds and a top speed that's just a hair off 200 mph. If the quarter-million price tag is a little out of your reach this month, you can always win a day on the track in an R8 thanks to Tony Stark.