OSCA
After the Maserati brothers sold out their company, they started in car production under the OSCA name in 1947, focusing on competition cars - whether sportscars such as Mt4 (1100cc and eventually 1500cc) and later Tipo S. For the 2 litre Formula 2, and F1cars (which were later converted to sportscars).
OSCA also produced some road cars, notably the OSCA Fiats, and the OSCA1600GT. OSCA continued to 1967.
