The diamond symbol is Renault. Renault Automobile Company is an automobile manufacturing and sales company, founded by louis renault Brothers in 1898 and headquartered in boulogne. Renault's graphic trademark is inlaid with four diamonds, which symbolizes the integration of Renault's three brothers and the automobile industry and indicates that Renault can survive and develop in infinite space. Renault's main products are Renault brand cars, official cars and sports cars. The company's concept car is equipped with KERS system, with a power of 59kW, a weight of 564kg and a top speed of 100 km.