The main rules for racing in Group B were to produce at least 200 road cars and Toyota based the Twin-Cam Turbo on the top of the line GT-T model Celica.[3]
Although all wheel drive cars like the Audi Quattro were dominating the sport, the Celica, in a similar vein to the Lancia 037 Rally, had rear-wheel drive.[4]
The car debuted in the 1983 World Rally Championship at the 1000 Lakes Rally with driver Juha Kankkunen finishing sixth overall. It was not competitive in many events due to the lack of AWD but its solid reliability and top end speed saw it achieve victories in more endurance focussed events such as the Ivory Coast Rally.[5]
In 1984, the Swedish driver Waldegård finished first overall at the Safari Rally, giving the first of three consecutive victories to the Toyota team.[6]
With the end of Group B, the Twin Cam Turbo engine became the engine (TA64) of the future Toyota Celica GT-Four, proving perfect for all-wheel drive used since 1987.[7]
