Sonic 1
A new Spirit was built over 1964-65 to attempt to beat Arfons, dubbed Spirit of America - Sonic I a four-wheel design with a much higher rated GE J79 engine originally from an F-4 Phantom, the same type as that used by Arfons' Green Monster. Another tit-for-tat with Arfons ended with Breedlove setting the record at 600.601 mph (966.574 km/h) on November 15, 1965, a record that stood until 1970, broken by Gary Gabelich's The Blue Flame land speed record rocket car. The Sonic I vehicle, the last jet LSR car to hold the record before Richard Noble's jet-powered Thrust 2 subsequently broke The Blue Flame's own record, is currently on display at the Indianapolis 500 Hall of Fame and Museum.
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