Final Leg in the SPEED GT World Challenge Share Comments The final leg of the North American SPEED GT World Challenge begins at Laguna Seca (California) for the Champion Audi Team. Audi driver Randy Pobst lies in third position of the drivers’ championship with his Audi RS 6 Competition heading into the final three races. In the Manufacturers’ Championship, defending champions Audi are currently second. The minimum weight of the championship leading cars of BMW and Porsche was increased before the forthcoming race at Laguna Seca. The Audi RS 6 Competition however, still has to weigh in with almost 200 kilograms more than its rivals. For more discussion on this story, click on the link to our discussion forums at the left.