The TX4 is a purpose-built taxicab (hackney carriage) manufactured by The London Taxi Company, a subsidiary of Geely Automobile of China. From 2007 until their liquidation in 2013 it was manufactured by LTI. It is the latest in a long line of purpose-built taxis produced by The London Taxi Company and various predecessor entities. The design has evolved via several mutations from the Austin FX3 of the 1950s. TX4's immediate predecessor is the TXII.
