Maybe there are some “Spinal Tap” fans at Porsche, because they took the 911 GT3, already the closest thing to a racecar in the 911 fleet, and pushed this road/track model to 11 to create the Porsche GT3 RS. RS, in Porsche-speak, is rennsport (racing). If you’re not yet a member of a track, the 911 GT3 RS is the car that may compel you to join.