In the very first Indianapolis 500, Ray Harroun gave the automotive industry one of its greatest safety innovations when he rigged a mirror above the dashboard of his race car so he could see oncoming traffic. By doing so, he did not have to use a “riding mechanic,” which gave him an advantage in the race. Though he still needed a relief driver, Harroun was in the cockpit for the last part of the race and drove to a 1:43.00 margin of victory over Ralph Mulford. (IMS Photo)
GALLERY: Classic Photos of the Indianapolis 500

In the very first Indianapolis 500, Ray Harroun gave the automotive industry one of its greatest safety innovations when he rigged a mirror above the dashboard of his race car so he could see oncoming traffic. By doing so, he did not have to use a “riding mechanic,” which gave him an advantage in the race. Though he still needed a relief driver, Harroun was in the cockpit for the last part of the race and drove to a 1:43.00 margin of victory over Ralph Mulford. (IMS Photo)

GALLERY: Classic Photos of the Indianapolis 500

During the 1912 Indianapolis 500, Ralph DePalma drove one of the most dominating races in history after leading laps 3 to 196. Unfortunately, with less than two laps left, his car suffered pistol failure and was unable to continue. Joe Lawson would wind up winning, but DePalma and his riding mechanic wanted to finish the race. The two wound up pusing the car down the entire length of the frontstretch to the finish line. (Courtesy Indianapolis Motor Speedway)
GALLERY: Greatest Indianapolis 500 Moments

During the 1912 Indianapolis 500, Ralph DePalma drove one of the most dominating races in history after leading laps 3 to 196. Unfortunately, with less than two laps left, his car suffered pistol failure and was unable to continue. Joe Lawson would wind up winning, but DePalma and his riding mechanic wanted to finish the race. The two wound up pusing the car down the entire length of the frontstretch to the finish line. (Courtesy Indianapolis Motor Speedway)

GALLERY: Greatest Indianapolis 500 Moments