The beautiful step sister of the stunning Lamborghini Gallardo, the Audi R8 with a 4.2 litre V8 engine, and a top speed of 187mph might be half the price but its taking the supercar world by storm. Clarkson described the R8 as one of the truly great cars and the only hesitation he has in awarding it the coveted five stars is that, ideally, he would like to give it six. So strap yourself in and see just what a modern day car can really perform like in the hands of a professional driver.