 This is the final Westfalia tent produced for the Split-windshield bus and is arguably the most collectible version; its tents alone, in good condition, have been sold for well over US$1,000.Early bay-window tent.When Volkswagen transitioned to the bay-window or breadloaf model with large, single curved windshield and sliding side door, the Westfalia camper was modified to include an angled poptop.