Toyota RV10 engine

The Toyota RV10 engine is a 72-degree, four-stroke, naturally aspirated V10 racing engine designed, developed and produced by Toyota for its TS010 Group C sports prototype, between 1991 and 1993. Rule changes in the World Sportscar Championship for 1992 forced Toyota to replace its earlier Group C engines, the R32-V and R36-V, which were 3.6 litre twin-turbocharged V8 units. The new rules required a 3.5 litre naturally aspirated engine, similar to Formula One regulations of the time, so in 1991 Toyota completed the RV10 and began early testing. The change of engine also needed an entirely new chassis, and former Tom Walkinshaw Racing designer Tony Southgate designed the car that became the TS010, with a more aerodynamic and longer body than the C-V series sports cars.