In 1983, Porsche began selling the 956 Group C to private teams, who soon began to modify their cars, obtaining increasingly refined configurations. Among these, the English team Richard Lloyd-GTi, which in 1984 fielded a modified chassis of the 956 (956-106B). With the arrival of the 962C, things got even more extreme and Richard Lloyd-GTi raced with frames designed by Nigel Stroud, featuring a honeycomb structure. From 1987 the Porsche 962-GTI were used both in the world championship and in other series, in Japan (Trust Team) or in the United States (Rob Dyson). Among the special features of these special 962Cs was the aerodynamic research that had led to a very different rear configuration compared to standard cars.