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

Tomorrow's world: the touchscreen steering wheel

You might think the steering wheel has done a pretty good job of directing cars for the past century. But now a team of researchers from the University of Stuttgart is attempting to reinvent the wheel. The scientists have come up with a touchscreen steering wheel, which they reckon could replace the humble wheel with stereo and cruise controls.

Porsche Macan makes UK debut in Harrods

The Porsche Macan has made its London and UK debut – in the window display of the world-famous Harrods department store. The new compact SUV will be on display in Harrods’ window until 5 February 2014, before formally arriving in UK Porsche dealerships two months later. On Bing: see pictures of the Porsche MacanPorsche Macan: 21 things we’ve learned Porsche says it chose Harrods not just because of the "cosmopolitan clientele" that frequent the Knightsbridge store, but also because the area is well known among enthusiasts hoping to spot some tasty supercars.

Audi A3 e-tron (2015) to launch Audi’s plug-in hybrid attack

Audi’s first plug-in hybrid will hit the UK by 2015, with the electric-assisted drivetrain installed in the A3. E-tron versions of the next-generation A4 and Q7 will follow, as Audi gets serious about plug-ins, and takes the fight to BMW’s forthcoming range of ‘born electric’ i cars. Audi A3 e-tron: the full lowdown Audi UK’s number-crunchers have been trying to calculate the market’s size, to estimate potential demand and help shape the A3 e-tron’s spec.