The Indianapolis 500 auto race has used a pace car every year since 1911. The pace car is utilized for two primary purposes. At the start of the race, the pace car leads the assembled starting grid around the track for a predetermined number of unscored warm-up laps. Then if the officials deem appropriate, it releases the field at a purposeful speed to start the race. In addition, during yellow flag caution periods, the pace car enters the track and picks up the leader, bunching the field up at a reduced speed. Prior to the first "500" in 1911, in the interest of safety, Indianapolis Motor Speedway founder Carl G. Fisher is commonly credited with the concept of a "rolling start" led by a pace car. Nearly all races at the time, as well as all Formula One races even to the present, utilize a standing start. In almost every year since 1936, it has been a tradition that the winner of the Indianapolis 500 be presented with one of that year's pace cars (or a replica). In most years since 1911, the driver of the pace car at the start of the race has been an invited celebrity, a former racing driver, or notable figure in the automotive industry. Historically, the honor of supplying the pace car was, and continues to be, a coveted honor by the respective automobile manufacturers and a marketing showcase for the particular make/model. Pace lap formats 1911–1956 The pace car was used to take the starting field on one unscored lap. The field would use the lap to warm up their engines, tires, and then at the conclusion of the lap, at a prescribed speed, the pace car would pull off the track and allow for a rolling or "flying" start. Fisher himself drove the pace car in several early years, but it eventually became an honorary position, with invitations extended to former winners, notable figures in auto racing or the automobile industry. The invited driver was given the honor of "pacemaker," and manufacturers used the honor of providing the car as marketing exposure. During his tenure as Speedway president, Tony Hulman rode in the pace car nearly every year, immediately after giving the command to start engines. His primary duty was to marshal the start and in some years, his responsibilities included operating a film camera that would be housed inside the car's