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9 Jim Hall was a wealthy Texas oilman who happened to have an inside line to GM's skunkworks. His Chaparral 2D won 16 of the 21 United States Road Racing championship races in 1965, along with that year's 12 Hours of Sebring. The car is powered by a 415hp Corvette small-block and a two-speed Powerglide automatic. It's now a part of the Jim Hall/Petroleum collection.