| Ferrari 315 S | |
| Manufacturer: | Ferrari |
| Aka: | Ferrari 315 Sport |
| Production: | 1957 3 made (one was converted from 290 S)[1] |
| Designer: | Carrozzeria Scaglietti |
| Class: | Sports racing car |
| Body Style: | Spyder |
| Layout: | Front mid-engine, rear-wheel-drive |
| Engine: | 3.8 L (3783.40 cc) Tipo 140 Jano V12 |
| Powerout: | 360 PS |
| Transmission: | 4-speed manual |
| Wheelbase: | 23501NaN1 |
| Weight: | 8800NaN0 (dry) |
| Predecessor: | Ferrari 290 S |
| Successor: | Ferrari 335 S |
The Ferrari 315 S was a sports racing car produced by Ferrari in 1957. The model was intended to succeed the Ferrari 290 MM, which had won the 1956 Mille Miglia.[2]
The 315 S mounted a frontal V12 engine at 60°, with two valves per cylinder and four chain-driven overhead camshafts,[3] for a total displacement of 3783.41NaN1. Maximum power was 3600NaN0 at 7800 rpm, for a maximum speed of 290 km/h.[4]
The Ferrari 315 S drivers took the first two positions in the 1957 Mille Miglia, Piero Taruffi being the winner in his last race, followed by Wolfgang von Trips.[5] In addition the 315 S finished sixth and seventh at Sebring, third at the Nürburgring and fifth at Le Mans but was then largely replaced by the 335 S. The victory of a Ferrari 335 S in Venezuela and the retirement of the Maseratis granted Ferrari the World Sports Car Championship in 1957.
The change in regulations for the World Sports Car championship to a 3-litre engine limit for 1958 meant the 315 S was replaced by the 250 Testa Rossa.