1978 GTX facts
Peter Gregg won another title with his Brumos Porsche 935
David Hobbs won two races with his BMW 320Tc
1978 GTO facts
John Paul ran a Porsche Carrera RSR at Daytona and Sebring. He sold it to Bonky Fernandez.
1978 GTU facts
Al Cosentino was the very first private Owner/Driver to enter a Mazda RX7