Group B was a set of regulations for grand touring (GT) cars used in sports car racing and rallying introduced in 1982 by the Fédération Internationale de l'Automobile (FIA). Although permitted to enter a GT class of the World Sportscar Championship alongside the faster and more popular Group C prototypes, Group B cars are commonly associated with international rallying during 1982 to 1986, when they were the highest class used in the World Rally Championship (WRC) and regional and national rally championships. The Group B regulations fostered some of the fastest, most powerful, and most sophisticated rally cars ever built, and their era is commonly referred to as the golden era of rallying...