car. In some years, and in most cases for the past several decades, the winner is actually presented with one of the official street-legal pace car replicas. Pace cars and drivers Pacemakers (1911–1941) Pacemakers (1946–1978) Note: From 1958 to 1963, retired driver Sam Hanks was named "Director of Racing" for USAC, and assumed the pace car duties. No "celebrity" drivers were used during that period. Note: The car assignments for the 1975 Indianapolis "500" Mile Race had the VIN number for pace car #1 as 4H57H5-H125041 and VIN number for pace car #2 as 4H57H5-H125135. The VIN engine code identifies as a 350 c.i.d (5.7 litre) V8 and was actually the modified 455 c.i.d. (7.5 litre) V8. Additionally, each VIN number for the total of the 55 Buick Century coupe Pace car replicas. Pace cars (1979–2022) 1998: Professional golfer Greg Norman was originally selected to drive the pace car in 1998. He participated in testing runs in the early spring. However, Parnelli Jones was named a last-minute substitute after Norman was forced to withdraw because of shoulder surgery. 2001 & 2003: Pace truck or SUV 2006: This was before doping scandals erased his sporting records in 2011. (See Lance Armstrong doping case.) 2008: There were two Chevrolet Corvette pace cars for the 2008 race; a metallic green pace car that runs on E85 driven by Fittipaldi at the start, and a pace car painted to resemble the 1978 pace car that runs on gasoline (used during caution periods) 2011: Donald Trump was initially named the driver, but resigned the honor due to speculation about his candidacy in the 2012 presidential race as well as the negative fan reactions against his selection, including a Facebook campaign. Two-seater Starting in 2010, a modified Dallara IR03, converted to a two-seater, has also led the field during the parade and pace lap. Billed as the "Fastest Seat in Sports," it is driven by a former Indy driver, and carries a special passenger. This is featured at many IndyCar Series races. Multiple appearances By driver (for start of the race, not caution periods only) By car The process of varying the selection across different models, which existed from 1911 through 2001, has been abandoned since 2002, with all pace cars exclusively provided by the Chevrolet marque since that year. By manufacturer A list of manufacturers and the frequency in which they either provided official pace