Alfa Romeo 20-30 ES Alfa Romeo 20-30 ES)
| Alfa Romeo 20-30 ES | |
| Engine | In-line four-cylinder |
| Displacement | 4250 cm³ |
| Bore * stroke | 102 * 130 mm |
| Compression | 4,45 : 1 |
| Engine control | SV |
| Power | 49 kW (67 HP) |
| Nominal rotation speed | 2600 rpm |
| Transmission | Four-speed |
| Suspension f/r | Rigid axles, leaf springs |
| Wheelbase | 2900 mm |
| Length | 4100 mm |
| Weight | Approx. 1200 kg + driver |
| Maximum speed | Approx. 130 km/h |
| Designer | Giuseppe Merosi |
| Construction period | 1920 - 1921 |
The company Alfa just survived a bankruptcy and the takeover by Nicola Romeo, who had earned quite some money - amongst other things by the production of war sensitive goods. The First World War had ended, and Alfa attempted to renew and extend its modest prewar racing success fame. Thanks to sufficient funding, the first Alfa Romeo originated. No less than Enzo Ferrari was the driver and with him the Targa Florio victory in the first year was a fact. Alfa's racing career began.