Alfa Romeo Tipo A
 Alfa Romeo Tipo A Monoposto was the first monoposto (single-seater) racing car designed by Alfa Romeo. The car had two 6C 1750 straight-6 engines and gearboxes assembled side by side. Producing 230 bhp (172 kW) the car had top speed of 149 mph (240 km/h).The car's best racing achievement was in the Coppa Acerbo of 1931; Tazio Nuvolari was third with Giuseppe Campari winning. Luigi Arcangeli was killed at Monza in 1931 while practising with this car for the Italian GP.