Welcome to my new DVD, Duel - it's all about challenges and some big questions. Which car makes the most smoke while going sideways - a Lamborghini Murcielago SuperVeloce or a Vauxhall VXR8 Bathurst S? What is best at drifting - the Jaguar XKR, the Lotus Evora, Audi's R8 V10 or BMW's M3? To find out, I globe-trot from sun-drenched Spain to Silverstone via Oxfordshire and Swindon.