Grunberg was a French automotive manufacturer founded in 1960 by Rodolphe Grunberg. The company specialized in producing small, lightweight vehicles, with its most notable model being the RG125. The RG125 was a compact two-seater roadster that featured a 125cc single-cylinder two-stroke engine. This engine allowed the vehicle to achieve a top speed of over 40 mph (64 km/h), while the car itself weighed only 150 kg. Grunberg's focus on…