Pontiac 's roomy new 2006 G6 coupe already has the looks and performance of a competition-inspired machine, so it doesn't take much to boost the excitement factor. GM Performance Division built the G6 Performance Coupe to showcase how wild the 2+2 coupe could be with replacement body parts. Those parts include new front and rear fascias, new rocker panels and a large rear deck wing. Forgeline 19-inch wheels and racing-inspired Wilwood brakes complete the functional/stylistic additions.