The 8C 2300 was developed in 1931 on the basis of the 6C 1750 as a further development for racing. The car with the stiffened chassis got a 2.3-litre engine with roots compressor and had a remarkable 165 hp in the racing version, the street version still 142 hp. The cylinder unit consisted of two half blocks of light metal, the cylinder liners were made of steel. The two-part light alloy cylinder heads were a world first.
Depending on the customer’s requirements, Zagato, Castagna, Figoni, Pininfarina or another well-known coachbuilder produced the bodywork for the 8C. The car was available as a convertible as well as a very elegant coupé. In racing, the Bolide scored numerous victories after a somewhat unsuccessful debut and was considered the best racing car of its time.
Alfa Romeo produced by the chassis unit 188 pieces.
The 8C series also included the 1935 bimotors, the 8C type LeMans and the Monza. In contrast to the 8C 2300, which Jano designed, the bimotor was developed by Luigi Bazzi for Ferrari. The two built racing versions had an engine at the front and another engine at the rear, between clutch, transmission and driver’s seat, which reduced mass. Alfa Romeo launched the 8C 2900 in 1937. The first version from 1934 was a two-seater chassis that was also suitable for racing. From 1937 onwards, the 8C 2900 B was available as an open 2-seater, short racing car and as a long 4-seater touring coupé. At an auction of Christies, an 8C 2900 with a Pininfarina Cabriolet bodywork reached a record 4.072 million (!) US dollars, almost 3 million euros.