Baja Bug
The Beetle was popular in places with few roads because of its rear-mounted air-cooled engine, flat floorpan, and torsion bar suspension.  In fact, magazine advertising of the time said that the Beetle was so watertight it floated.  These good things made the Beetle the perfect choice to make into an off-road car.  It was successful both then and now in the Baja 1000 off-road race.