Vintage Go-cart Racing Exhaust Palmini on 2040-parts.com

Watch the Porsche 911 GT3 rear-steering system work

A handful of manufacturers have offered four-wheel steering in the past including Honda, Nissan, BMW, Mitsubishi, Mazda and, most recently, Acura and Porsche. On Monday, suspension expert Elephant Racing uploaded a video to its YouTube channel demonstrating the feature on the 2014 Porsche 911 GT3. In most four-wheel steering cars--Acura and Porsche included—a computer controls the movable rear wheels.

Porsche Cayenne facelift (2014) first official pictures

By Phil McNamara First Official Pictures 24 July 2014 09:21 Porsche is revamping its flagship Cayenne SUV, boosting performance and economy, improving comfort and specification, and introducing – it claims – a ground-breaking plug-in hybrid model. The five-model range will be in dealerships from 11 October, priced from £49,902 for the base diesel. For speed, the uprated Cayenne Turbo is the obvious flagship, but the Cayenne S E-Hybrid is a bit more three-dimensional.

Renault Clio (2012) first official pictures

Renault's bold new Clio has broken cover, sporting a new look, technology overload and a raft of personalisation options to take the fight to the supermini class leaders. We'll see in in the metal at the Paris motor show in September 2012. Where has the Clio's new look come from?