Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

McLaren P1 (2013) first look inside Britain's new supercar

McLaren’s latest update on the P1 supercar reveals the supercar's carbonfibre interior for the first time. We’ll see the production-ready P1 at the Geneva motor show on 5 March 2013, but in the meantime CAR also has the best-yet spy shots of the P1 testing in Spain, with the first glimpses of its finished interior architecture. Talk me through McLaren’s latest P1 release The latest update from Woking shows the P1's cabin, visible past a set of butterfly doors that ape its famous McLaren F1 predecessor.

Renault looking to 'relaunch the 5 below Clio'

Spurred on by the success of BMW's Mini, Fiat's 500 and VW's Beetle, Renault is actively considering the relaunch of the 5 to slot below the Clio, CAR has learned. However, a new Renault 5 would not be a retro car, according to senior sources in Paris. 'We have no retro cars in our plan,' said our mole.

Infiniti Etherea: Infiniti’s compact concept revealed in Geneva

Infiniti Etherea Concept Despite our gripes that Infiniti seem half-hearted about their entry in to Europe – certainly in terms of their reluctance to get the product under people’s noses –  we can’t argue they’re not developing their range to suit the European market. Good case in point is the introduction of diesel lumps across the range, although we find the new Infiniti M35h Hybrid potentially more appealing than the M30d (we’ve surprised ourselves there). And now we get a proper European-sized concept revealed in Geneva – the Infiniti Etherea Concept – which is a compact, pillarless, suicide door endowed 3-Series competitor with a 2.5 litre S/C lump connected to an electric motor and driven through a CVT ‘box.