Challenger I

The Challenger I is a world-speed record car built by Mickey Thompson.

The car had four Pontiac engines, four transmissions, four overdrive units, four ring-and-pinion final drives.  The driver, Mickey Thompson, sat in a cramped cockpit over the rear axle.

The car was built mostly from junked and rebuilt parts.

On September 9, 1960, the car achieved the one-way world land speed record at 406.6 mph.  The return run was unsuccessful and thus the record was not official.