FX4 is a Carbodies taxicab that was produced from 1982 to 1995. The car had Land Rover’s 2.3 L diesel engine. Later FX4R, upgraded model was released (R in the name stands for Rover), but it had not received recognition. Car had Perkins/Mazda 2.9 L diesel engine that was introduced later, it improved overall performance but was noisy, so new, improved version with upgraded chassis and suspension, received 2.5 L engine.