the end, with Graham Hill edging out Jim Clark by 41 seconds in a Battle of Britains. Some people think there was a scoring error and that Clark had actually won, but Clark's team does not protest. 1967: Andy Granatelli and his brothers bring a radical new turbine-powered car to the Speedway this year. Parnelli Jones absolutely dominates the field in it, and leads by almost a lap when a bearing in the gearbox fails with just three and a half laps to go. A. J. Foyt weaves his way through a multi-car accident on the final straightaway to win his third '500'. The race is a two-day affair for the first time when rain postpones the event after only 18 laps on May 30. Shortly after the race, USAC officials change the rules regarding turbines to reduce the Granatellis' advantage. 1968: The Granatellis return with even more turbines this year, in new wedge-shaped Lotus chassis. They take the first two starting spots with record speeds of over 170 mph. However, on race day, Bobby Unser in a turbocharged Offenhauser-powered car, is able to take their measure, leading 127 laps. Unser's path to victory is cleared when Joe Leonard's turbine breaks its fuel pump shaft with just nine laps to go while leading. USAC then issues further restrictions on turbines, rendering any future such engines uncompetitive. 1969: Andy Granatelli abandons the turbines and joins forces with Mario Andretti in a new four-wheel drive Lotus with a turbocharged Ford engine. But after the car is destroyed in a practice crash, the team qualifies a conventional two-wheel drive Hawk built by crew chief Clint Brawner. For the only time in Andretti's Indy career, all the breaks finally go his way, as he wins by nearly two laps over Dan Gurney. The long-suffering Granatelli plants a kiss on Mario's cheek in Victory Lane. 1970–1979 1970 · 1971 · 1972 · 1973 · 1974 · 1975 · 1976 · 1977 · 1978 · 1979 1980–1989 1980 · 1981 · 1982 · 1983 · 1984 · 1985 · 1986 · 1987 · 1988 · 1989 1990–1999 1990 · 1991 · 1992 · 1993 · 1994 · 1995 · 1996 · 1997 · 1998 · 1999 2000–2009 2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 2010–2019 2010 · 2011 · 2012 · 2013 · 2014