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

Renault Formula E racer (2013) at Frankfurt motor show

Formula E, the new elite racing series for electric single-seaters, has got the FIA’s backing, confirmed the major cities that will host the races, and now we've finally seen the crucial racecar. This is the Spark-Renault SRT_01E, a joint project developed between Renaultsport and Spark Racing Technology (SRT) which has just been unveiled at the 2013 Frankfurt motor show. There’s also been input from F1 legends Williams and McLaren, plus Dallara (which builds all the cars for the IndyCar series in the US).

Volvo teases new Concept ES ahead of 2014 Geneva Motor Show

Volvo Volvo has released these mysterious teaser shots of its new Concept ES show car ahead of the 2014 Geneva Motor Show. Although largely covered in a dustsheet - annoyingly - we can still see the first details of the new car, which has the silhouette of a long shooting brake. It's also the first confirmation of the name of the car: Concept ES harks back to the 480 ES of the late 1980s, which gave Volvo a distinctive coupe with pop-up headlamps and an unusual rear end (see below).

Infiniti-designed Santa's sleigh (2010)

Today's sleighs are courtesy of Infiniti. The design team in Japan have sketched out a couple of Infiniti sledges for Father Christmas to deliver his presents across the globe in imperious style. The first sleigh looks like an Essence supercar concept meets an FX crossover - from that long snout and high-mounted, wedgy headlamps to the complex, textured surfaces, sliced and diced by a laser-pointer's worth of sloping lines flying off at all sorts of angles.