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

Think City EV Cup Edition (2010) first official pictures

Manufacturers have been trying to make their racers more economical for some time now; Audi and Peugeot have produced diesel Le Mans winners and CAR reviewed the Porsche GT3 R Hybrid in the June 2010 issue, but this the most recent fully electric offering from Norwegian company Think.   Think has followed the traditional road-racer conversion for this one-off prototype, by stripping out most of the interior and space for the passenger, using Perspex instead of glass in the windows, installing a solitary lightweight bucket seat and lowering the centre of gravity. The company claims the diet reduces the Think's weight by nearly 70kg; that's the same saving as a Lamborghini Gallardo Superlegerra, remember.

McLaren MP4-12C High Sport – a very special MP4-12C

The five McLaren MP4-12C High Sports created for one customer McLaren has produced a very special run of just five MP4-12C cars with cosmetic and power upgrades – the McLaren MP4-12C. Those who’ve driven the McLaren MP4-12C all say the same thing; it’s the most civilised supercar on the planet. That may not suit the small minority looking for foibles in their supercar, but for those who want awesome power and  stunning build quality in a car that cossets and soothes when you hair’s not on fire, the MP4-12C is a stunning choice.

New so-called 'stealth' speed cameras: don't panic

REX Speed cameras: rumours of their death have been greatly exaggerated. Two years ago we were reporting on the number of road safety partnerships switching off their speed cameras – now the Highways Agency has revealed a new system that will offer more cost-effective motorway monitoring. Though officially called Hadsec3 – Highways Agency digital enforcement camera system – the mainstream national press has already dubbed the new speed cameras ‘stealth cameras’, on the basis that they are small and grey, rather than bright yellow.