Windboat
In the event that you are traveling on a dead flat surface on a windy day, it's always good the have your Windboat (7353) at the ready. Its fun to imagine Joe racing across salt flats in the wind boat, but in practice it's virtually impossible to generate a breeze strong enough to propel Joe along on his own.
Below, the very rare 1976 orange box release, courtesy of Steve Stovall of the great 3DSuperJoe.com