sentences:  The Alpina B6 and Chevrolet Corvette Z06R were also dropped by the 2011 season, while the Ferrari 430 GT3 Scuderia was replaced with the 458 Italia GT3.From 2006-09 teams were limited to a maximum of 3 cars, with each car having 2 drivers.From 2010 teams are limited to a maximum of two cars, each with two drivers.