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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 was built from February 1994 to June 1999. The Celica GT-Four production cars were built at Toyota's Tahara plant in Aichi Prefecture, Japan, and the rally cars were prepared by Toyota Team Europe in Cologne, Germany. The Celica GT-Four ST165 made its World Rally Championship (WRC) debut in the 1988 Tour de Corse, but the first WRC victory came in 1989 Rally Australia. The ST185's WRC debut was in 1992 Rally Monte Carlo, and the first WRC win was in the 1992 Safari Rally, and won four events in that year. 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. The significance of the Toyota Celica GT-Four in WRC history, previously dominated by European manufacturers, is that it was the first time a Japanese car manufacturer entered the WRC with an AWD turbocharged car, took trophies and won the titles. Since then other Japanese manufacturers have been successful in the WRC. Toyota preceded the Mitsubishi (Lancer Evolution and Galant VR-4) and the Subaru (Legacy and Impreza), but not the Mazda (Mazda 323GT-R & 323GT-X). Toyota later exited the WRC to concentrate their racing efforts in Formula One. Toyota Team Europe (TTE) was also the first to introduce the ''anti-lag system'' (ALS) in their Group A ST205 Celica GT-Four cars, a technological breakthrough that was later adopted by other teams. ==ST165 (1986-1989)== The Celica GT-Four concept started with a convertible prototype displayed at 1985 Tokyo Motor Show. The white car with burgundy interior is the first car to be called ''Celica GT-Four'' with theme "Open Air 4WD Motoring". The convertible never went into production, but the concept went to the liftback model which began production in October 1986. The ST165 GT-Four can be distinguished from the front-wheel-drive Celica by its front bumper, which has larger openings, and the "GT-Four" decals on the doors. Inside, the original GT-Four has a differential lock switch near the hand brake for the 1986 and 1987 model years. The Celica GT-Four was updated in October 1987. As with other front-drive Celicas, the ST165 received a new grille, tail lights, and alloys. The export version also has ground effects, noticeably the side spoilers and dual front round fog lights. The center differential was changed from a manually lockable unit (either open or locked) to a viscous-coupling limited-slip type. The GT-Four was marketed in the USA as All-Trac Turbo and in Canada as 4WD Turbo. The ST165 was not sold in North America before 1988 except for seventy-seven special-edition cars sold to commemorate Toyota's IMSA GTO championship win. These Celicas are all white with white wheels and blue interior and have "IMSA GTO CHAMPION" printed in small letters on the side moulding, as well as a white stripe on the grill. One car was sold at each of the 77 Toyota dealerships in California. They were sold in 1987 as 1988 models, and do have the viscous-coupling center differential. The ST165 was the only car to be sold with the first version of Toyota's 3S-GTE. It developed 182-190 hp (depending on the market & model year) and of torque. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Toyota Celica GT-Four」の詳細全文を読む スポンサード リンク
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