Indianapolis 500 Pre Race

Billboards ("Indianapolis 500 Awards Over One Million Dollars") over electronic lap board at Indianapolis Motor Speedway / Joe Leonard driving Indy racer 1, David Hobbs driving Carling Indy race car 73, AJ Foyt driving Indy racer 14, Mario Andretti driving Viceroy Indy race car 11 / Panning level / Bobby Unser driving Olson ITE Eagle Indy racer 8 / Indy racers 4, 12 racing / Jim Bob's Flying Circus Volkswagen Beetle (VW Bug)-- painted blue and red, old USAF star emblem on door / pit crew talking with driver BOBBY ALLISON seated in car / pit crew talking with MARIO ANDRETTI seated in car / Indy race cars on otherwise empty racetrack, empty spectator stands. Indianapolis 500 Pre Race on March 28, 1973 in Indianapolis, Indiana (Footage by Getty Images)