2015 Pirelli World Challenge

The 2015 Pirelli World Challenge season is the 26th running of the Sports Car Club of America's World Challenge series. It introduces a new all-Porsche "GT Cup" race group. Johnny O'Connell is the defending champion in the highest class, the GT class.

2015 Pirelli World Challenge

The 2015 Pirelli World Challenge season is the 26th running of the Sports Car Club of America's World Challenge series. It introduces a new all-Porsche "GT Cup" race group. Johnny O'Connell is the defending champion in the highest class, the GT class.