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

Continental rolls to Which? best buy awards

CONTINENTAL’S ContiWinterContact TS 850 cold-weather tyre has been awarded a Which? Best Buy award in two sizes. The 225/45 R17H and 185/60 R15T, used on cars like the Audi A3 and Renault Clio respectively, both won plaudits for offering increased grip and stability on dry, wet, snowy and icy roads.

Twizy Renault Sport F1 concept is a completely bonkers EV

Based on the  strange little Renault Twizy EV commuter golf buggy, the Twizy Renaultsport F1 concept gets a mad body kit to make it look like something out of a Star Wars film, with huge wings, side pods, a rear diffuser and a yellow paint job that evokes Renault’s sporting heritage. But it’s under the skin where the interesting stuff lurks. Renault has fitted the Twizy with an F1 inspired KERS system that fits where the back seat used to be (yes, the F1 Twizy is a toy just for one) which chucks an extra 79bhp at the Twizy’s existing electric motor when fully charged, enough to scoot the F1 Twizy to 62mph in just 6 seconds.

Video: The Porsche Panamera Sport Turismo concept build process

Porsche has released a video featuring Style Director Michael Mauer charting the design process of the Panamera Sport Turismo concept. The 10-minute YouTube video, which also features General Manager Advanced Design Style Mitja Rorkert, follows the build process through each modeling phase right up until the presentation of the show car at this year's Paris motor show. "It always presents a special challenge when we develop a new kind of car for the Porsche brand," says Mauer, "precisely because we haven't been in the segment before, and the question of whether it matches the Porsche brand always looms in the background." We were impressed at the Panamera Sport Turismo concept's unveiling, particularly with its stance and detail execution, so the video is a chance to see just how this concept came into being.