Just when you thought there was already a Porsche 911 for every occasion, the fine folks from Stuttgart drop a 4.0-liter, dry-sump, 500-horsepower monster into the shapely rear-end of the already awesome GT3 RS, creating the 911 GT3 RS 4.0. Thanks to the race-derived flat-six, the 4.0 can scoot to 60 in 3.8 seconds, and will hit 124 miles per hour in under 12 seconds. As God intended, this 911 is only available with a six-speed manual.
