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

Win one of six pairs of Polaroid sunglasses

By James Popsys Competitions 30 June 2009 09:30 The summer is here and CAR Online has teamed up with Polaroid sunglasses to give away six pairs of its range-topping shades. Click here to enter our competition. Polaroid was the inventor of polarising lens technology in 1930s, so all the sunglasses we’re giving away feature polarised lenses, which deliver 100% UV protection and block glare, rather than just making things darker.

Audi TT Coupe and Roadster facelift (2010) first pictures

This is Audi's facelifted TT Coupé and Roadster, though rather than referring to the tweaks as full-blown changes (which they're not), Ingolstadt is taking a more subtle approach and merely calling the revisions '2011 Model Year' tweaks.   Well it’s an Audi, so all TTs now come with a set of LED daytime running lights. As for the rest of the car, come on, can’t you see the changes? Oh, well Audi says the interior and exterior have been 'revised with great attention to detail'.

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.