PCA—1. The front bumper is straight GT3, but uses a new and smaller lip to balance the aero due to the 911R's lack of a rear wing. Porsche says the car achieves the same aero
balance front to rear as the 991 GT3, which is not to be confused with the same lift or downforce. Due to less drag, the 911R is said to "run away" from the wider, bewinged GT3 RS at high speeds.