The Citroen ZX range was introduced to the UK in June 1991. Originally, the ZX was available with a choice of 1.1 litre (1124 cc), 1.4 litre (1360 cc), 1.6 litre (1580 cc) or 1.9 litre (1905 cc) engines. Not all engine sizes, however, were available in all markets (the 1.1 litre version was not available in the UK). At first, only five-door Hatchback models were available. All models have a five-speed manual transmission as standard; a four- speed automatic transmission was offered as an option on 1.6 and 1.9 litre models. All engines are derived from the well- proven TU series (1124 cc and 1360 cc) and XU series (1580 cc and 1905 cc models) engines, which have appeared in many Citroen ZX 1.4 Reflex Plus 5-door Citroen ZX 2.0 16-valve Citroen and Peugeot vehicles. The engines are of four-cylinder overhead camshaft design, mounted transversely and inclined to the rear, with the transmission mounted on the left-hand side. In late 1992, a three-door Hatchback variant was introduced. At the same time, three new sports models were also introduced, all of which were equipped with new engines. These new models were the 1.8 litre (1761 cc) Furio, the 2.0 litre (1998 cc 8-valve) Volcane, and the 2.0 litre (1998 cc 16-valve) 16-valve model. All of these new models are available in three-door form only. All three of the new engines are again derived from the XU series engine.