Riverside: Lothar Motschenbacher, McLaren M12 Chevrolet, leads Chris Amon, Ferrari 612 P 7.0, and John Cordts, Young-American Racing, McLaren M6B Ford.
Lothar Motschenbacher, McLaren M12 Chevrolet, leads Chris Amon, Ferrari 612 P 7.0, and John Cordts, Young-American Racing, McLaren M6B Ford.