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

KTM X-Bow – want a drive?

KTM X-Bow 'Drive Orange' track days at Brands Hatch and Silverstone KTM is an Austrian Motor Cycle manufacturer which has woken up to the possibilities of making a four-wheeled creation, and has been busy building and refining the X-Bow in collaboration with Dallara and Audi. Featuring a 237bhp, 2.0 litre Audi  TFSi unit – and coming in at a bit under £50,000 for the street version – its low weight (790kg) gives it supercar acceleration of around 3.7 second 0-60mph. There is even talk of a 380bhp version, which will put it up there with the Ariel Atom V8 we reported on recently.

Jaguar XKR-S GT revealed (+ video)

Jaguar has pulled a surprise with the reveal of a more focused, and expensive, XKR ahead of the New York Auto Show – the Jaguar XKR-S GT. The XKR-S GT doesn’t get extra power – the XKR-S already has 542bhp – but it does get lots of tweaks to make it more able to use the performance it has. That means a new bonnet with more vents to improve cooling, a new carbon fibre front splitter, new rear diffuser, an aluminium undertray at the front, a whopping great spoiler at the back and bits of carbon fibre floating around.

Google hopeful over driverless car

GOOGLE says it has turned a corner in its pursuit of a car that can drive itself. The leader of the technology giant's driverless car project wrote in a blog post that test vehicles are becoming far more adept at city driving. They can already comfortably handle motorways, he said, but city driving presents a virtual obstacle course of pedestrians, cyclists and blind corners.