The Porsche GT Team fields two 911 RSR at round nine of the IMSA SportsCar Championship season on the Virginia International Raceway on 19 August. The 510-hp racer from Weissach, which has already notched up victories at the 12 Hours of Sebring and the Mid-Ohio race so far this season, tackles the infamously cutthroat GTLM class against strong opposition from BMW, Chevrolet and Ford. In the GTD class, Porsche’s customer team Wright Motorsports campaigns the 911 GT3 R, which recently celebrated its first win this year in the USA at Road America. The prototypes will be absent at the venerable 5.263-kilometre racetrack close to Alton in the US state of Virginia for the second time this season. This means that overall victory will go to a GT car.