It had an all alloy, quad cam, 32 valve, EFI, 3.8 litre V8 engine. It is not clear if the engine was a development of the V series engines used in the Century or a prototype of the 1UZ-FE which was later used in the Lexus LS400 (some 1UZ-FE prototypes from about 1987 were the same size). The radiator cooling fans were hydraulically driven under computer control.
At the time, the drive train was Toyota's only 4WD system using a V8. The front/rear split was normally 30/70 but could change up to 50/50. A 4 speed electronically controlled automatic gearbox was used. Electronic Skid Control and Traction Control were included.
The Pegasus (Precision Engineered Geometrically Advanced SUSpension) was a prototype for the new Toyota TEMS suspension used on later Cressidas, Soarers and Supras.
The FXV-II may have included 4 wheel steering.
The interior included GPS navigation and computerised CRT displays