It's also worth noting that several units of the 6R4's engine were eventually sold to Tom Walkinshaw Racing (TWR), becoming the basis of the Jaguar XJ220's production twin-turbo V6. The MG Metro ...

The MG Metro 6R4 (6-cylinder ... It also sold the design of the V64V engine, to TWR, in whose hands it evolved into a 3.5-litre twin-turbo unit that appeared in Jaguar’s Group C racers and ...

The Peugeot 205 Turbo 16 and MG Metro 6R4, along with a few wild concepts ... Borrowing the 1.8-liter engine from the Celica and MR2, the pocket rocket received a Toyota Motorsport turbo kit.