The A320 series has two variants, the A320-100 and A320-200. The A320-200 is the definitive version as only 21 A320-100s were ever produced; these aircraft, the first to be manufactured, were delivered only to Air Inter, an airline later acquired by Air France and British Airways (as a result of an order from British Caledonian Airways made prior to its acquisition by British Airways) and are the only A320s that lack the distinctive wingtip fences. The A320-200 features wingtip fences and increased fuel capacity over the A320-100 for increased range; other than that differences are minimal.