For Mac Ten's 1973 SVRA Porsche 911 RSR 3.0 (from vintage racing's Group 6 category which allows updating and backdating from within the era) and Kunos' own 1974 Porsche 911 Carrera RSR, a pair of ten-lap race setups for LilSki's Watkins Glen 1.1 (the Boot layout). Spoiler: the SVRA car is at least 5 sec/lap faster...and more fun to drive.