The Pirelli World Challenge is a North American auto racing series that is managed by WC Vision and sanctioned by the Sports Car Club of America (SCCA). The World Challenge series was born in 1990, and celebrated its 25th anniversary season in 2014. The series consists of seven driver classifications and six classes of vehicles.

http://www.world-challenge.com/index.php?option=com_drivers&view=event&id=56&Itemid=216
http://www.effortracing.com/schedule/pirelli-world-challenge-at-circuit-of-the-americas-2015-03-06/
http://autoweek.com/article/sports-cars/olivier-beretta
http://www.austinfitmagazine.com/Event-Coverage/2015-Pirelli-World-Challenge-at-Circuit-of-The-Americas/-ferrari-win-pirelli-world-challenge-gt-opener-circuit-americas
https://www.facebook.com/pirelliworldchallenge