Group Racing Developments, known more simply as GRD, was a short-lived British constructor of racing cars. It was formed in 1971 with a large percentage of staff coming from those made redundant from the closure of Lotus Cars customer car manufacturing arm. They built cars for Formula 2, Formula 3, Formula Atlantic and Sports 2000 racing classes until a decline in British racing vehicle manufacturing bit into the industry in 1975 that paralleled the oil crisis.
Cars
Year Model Racing series Note 1972 GRD 272 Formula 2 British Formula Atlantic GRD 372 Formula 3 Roger Williamson won the Forward Trust BARC F3 and the Shellsport National F3 British F3 championships GRD S72 World Championship for Makes S1.6 1973 GRD 273 Formula 2 British Formula Atlantic GRD 373 Formula 3 Gunnar Nordström finished fourth in the Monaco F3 Grand Prix GRD S73 World Championship for Makes S2.5 1974 GRD 274 Formula 2 British Formula Atlantic GRD 374 Formula 3 GRD S74 World Championship for Makes S2.5 1975 GRD 375 Formula 3 Renzo Zorzi won the 1975 Monaco F3 Grand Prix GRD S75 World Championship for Makes S1.6
References