Vitrex Industries SA was a French microcar manufacturer based in Paris, active in the late 1970s and early 1980s. The company's first product was the Riboud, a very basic three- or four-wheeled open microcar designed by architect Jacques Riboud. It was powered by a 2.4bhp 47cc Sachs engine and was marketed as the cheapest microcar in France, priced at FFr6,430 in 1979. Production of the Riboud was carried out by…