Porsche 911 GT3 RS 2010 by | Aug 21, 2009 | 0 | The 2010 911 GT3 RS comes packing a new, 3.8L flat-six users – up from 3.6L last year – to develop 450 horsepower. That figure has increased by 15 horsepower to the current GT3 and 35 horsepower more than the... Read More