The Toyota Celica GT-Four is a high performance model of the Celica Liftback, with a turbocharged 3S-GTE engine, and full-time AWD. It was created to compete in the World Rally Championship, whose regulations dictate that a manufacturer must build road-going versions of the vehicle in sufficient numbers. These vehicles are referred to as "homologation special vehicles".
The Celica GT-Four came in three generations; ST165, based on the fourth generation Celica, and manufactured between October 1986 and August 1989; the Super Round shape ST185 produced from September 1989 to September 1993; and ST205 from February 1994 to June 1999.
The ST185 is Toyota's most successful rally car. It won the WRC Driver's Championship in 1992, and the WRC Manufacturer's and Driver's Championships in 1993 and 1994. The ST205 came in late 1994, and became official rally car in 1995 with one WRC victory. It also won the 1996 European Rally Championship.