A V6 engine is the perfect combination of power and fuel economy, but when it comes to reliability, some missed the mark.

Unlike the R5 Turbo, the mission here was to somehow shoehorn a large naturally aspirated engine – a 227bhp version of the 24-valve 3-litre V6 from the ... Clio were the parts of the donor ...

Those were replaced in turn by the current V8s in 2006, and now it's been confirmed that by 2014 two more cylinders will drop off the block for V6 propulsion. Formula One racing engines have been ...