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

Arash AF10

Arash Motors is the latest in a succession of recently established low-volume manufacturers, and has unveiled their first car, the AF10, at the British Motor Show in London. Since the company's conception in March this year, the team has been working continuously on the AF10, with styling done in-house by Arash Farboud Designs. The company is based in Cambridge, UK, with testing of the bespoke chassis done at the nearby Millbrooke circuit.

Mercedes E 63 AMG S: UK price from £83,740

The E63 AMG S is the extreme version of what is already an extreme car in the E63, with a power boost that takes it from 549bhp to 577bhp – and throws in an extra 60lb/ft of torque for good measure too – and promises real extreme performance. The problem is, getting that power down to the road. In left hand drive markets that’s solved by simply offering the Mercedes 4WD option – 4MATIC – which does a much better job of transferring power to the road than the regular RWD layout.

Renaultsport R.S 01 first pictures: Renault’s new 2014 racer revealed

By Tim Pollard First Official Pictures 27 August 2014 16:26 If you were worried that Renaultsport had lost its mojo after the lacklustre Clio RS, think again: it’s just unveiled the new Renaultsport R.S 01, a wild and focused track racer for the Trophy one-make series. Weighing less than 1100kg thanks to its Dallara-sourced carbonfibre chassis, the R.S 01 has a 3.8-litre V6 engine developing ‘more than 493bhp.’ The engine is borrowed from in-house alliance partner Nissan’s GT-R Nismo high-performance coupe, and is breathed on by two turbochargers. It’s mounted amidships and revs to an angry-sounding 6800rpm.