CAR tech: how to eliminate turbo lag

CAR has tested a new breed of experimental super-diesel that literally leaves current technology standing and may banish turbo lag forever. We drove an Audi A6 3.0-litre V6 prototype fitted with an electric bi-turbo system which delivers a massive dose of torque from idle. The effect is radical, firing the saloon off the line like an R8 when the driver floors the throttle.

Gold Lamborghini Aventador is the world's most expensive model car

You know that feeling when you think you've seen everything before? That sense that there's simply nothing left with the power to surprise. But then, without warning, along comes something else that takes your breath away.

Car Design of the Year 2008

This is your last chance to vote for your favorite car designs of 2008. Your votes will decide which design teams will be presented an award by the CDN team at the Geneva auto show in March, with prizes being given to the best vehicle in the concept and production car categories. We'll announce the results of the online survey next week, so cast your vote now!