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).

McLaren's latest P12 teaser video

McLaren has followed up its announcement that its Paris-bound P12 hypercar, teased with an image last week, by releasing a video that suggests the shape and aerodynamics we can expect from the car. The video shows a series of lights passing over an invisible object – the P12 – and using the lightshow it is possible to imagine the general shape of the car, without any detail of course. If the P12's unveiling is anything like the light show in the video, it should be a fantastic experience in Paris.

New Porsche 911 Turbo (2010) Revealed

Porsche has released details of the 2010 MY Porsche 911 Turbo But times move on, and other car makers are starting to produce cars that can be used every day and have comparable performance. One startling entry is the Nissan GT-R, but even models from Lamborghini, Ferrari and even Audi are getting close on performance and usability. So it’s time for a tweak or two on the Porsche 911 Turbo to keep it at the top of the heap.