 His fatal Alfa Romeo 512 was a horizontally opposed 12 cylinder, rear-engined racing car with a centrifugal supercharger giving 335 bhp from 1.5 litres.He had already abandoned the Type 162, which was a 3 litre planned to give 560 bhp, with two carburettors, 3 stage supercharging with five compressors, 16 cylinders, and 64 valves.By 1940 he was working on a 4-bank 28 cylinder radial aero-engine, and the following year designed a unitary construction road car for postwar production with all independent suspension, a twin-cam 2 litre engine, and a gearbox integral with the final drive — a radical layout not unlike that eventually adopted for the Alfetta Coupe of 1974."