The first Volkswagen bus the T1 (1950 ~ 1967) , Splitscreen Bus, Splity, Kombi, Bulli has the characteristic split in the windscreen 2 sections of glass. The second type II Volkswagen bus (August 1967 to May 1979), the T2, has a 'modern' wide single piece (bay) window screen. Expains why this bus is refered to as the 'Bay' or 'Bay Window Bus'.