Designed to compete in Le Mans, this GT3 RSR uses the 997's 4.0-liter six-cylinder, here making 460 HP. An all-new wide-body aerokit completes the roughly $700,000 package. The company plans to use the 997 as a race car until later next year or early 2013 when a new 991-based model is introduced.
If you can't swing the $700K, there's always the similarly-powered Porsche 911 GT3 4.0RS. Le Mans only comes around once a year, but pretending like you're running Le Sarthe is something you can do every day.