Indianapolis 500: Cars circulate behind the pace car, led by Mark Donohue, Penske Racing, Eagle 72 Offenhauser, Bobby Unser, All American Racers/Oscar Olson, Eagle 73 Offenhauser, and Mario Andretti, Vel Miletich, Parnelli VPJ-2 Offenhauser.
Cars circulate behind the pace car, led by Mark Donohue, Penske Racing, Eagle 72 Offenhauser, Bobby Unser, All American Racers/Oscar Olson, Eagle 73 Offenhauser, and Mario Andretti, Vel Miletich, Parnelli VPJ-2 Offenhauser.