"Hatchback" refers to a bodystyle. In the Ford Pinto, that bodystyle bore the name "Runabout". So, in essence, there is no difference between a hatchback and a Runabout. The rear hatches on the Runabout changed/evolved through the years. The earliest one was half glass, half metal. Later they were mostly glass, surrounded by a metal frame. There was also an all glass hatch available in the later years. Hope this helps!
Dwayne :smile: