IMSA President John Doonan has teased further growth for IMSA’s GTP class in the coming years during today’s pre-Rolex 24 press conference. Doonan spoke directly about the potential for additional ...
IMSA was formed in 1969 by NASCAR founder Bill France and the husband and wife duo of John and Peggy Bishop as a nationwide sports car endurance racing series to complement the burgeoning-but ...