哈利波特与混血王子Since 2003, our top secret Top Gear test track (based just off the A281 in Surrey) has played host to all manner of glamorous metal in the hands of The Stig, celebrities in an array of afforable hatchbacks, the odd barbeque or two, and John Prescott. Here’s everything you need to know from 13 years of smoke and power - with links to all the behind the scenes footage.