to put it very simply, a zwitter is a split window because it has a split window, which is what classifies a split as a split. its not called a 16'' steel wheel, dual glove box car. its a split.
you could argue that a 51 split is not really a split because its so different then a 45 car, the tail lights, no chrome, no side trim on some, the decklid, not ever the dash is the same, to name a few things.
its true that a zwitter is very different then most split window beetles, but its still a split window.
to say that a zwitter is not a split, is like saying that a 57 belair is not a tri5 chev, or a 63 stingray isnt a midyear because of the bar going through the rear window.

:blush: