6 February 2012, 5:14 am
SPEEDtv.comGRAND-AM: BMW Evaluating Z4 GT3 For Rolex SeriesSPEEDtv.comGRAND-AM mandates a sightly thicker roll cage for its GT cars because of racing on high-speed, banked ovals such as Daytona and Homestead-Miami. While Ferrari built all of its new 458 GT3 cars to GRAND-AM standards, series-specific Audi R8s were ...... Read More »