Indy 500 delivers speed, safety advances, innovation for 100 years
Ray Harroun, a retired engineer for Marmon, won the first Indianapolis 500 on May 30, 1911, with the help of a rearvierw mirror on the hood of his Marmon Wasp. (INDIANAPOLIS MOTOR SPEEDWAY)
The moves are an adjustment for many automakers and suppliers that were concerned about the tariffs. Some say the tariff revisions fall short of protecting suppliers.