Supercar Experience Days: Have you ever dreamt of riding shotgun next to a professional racing driver as they hit a track full speed ahead? If so, you clearly love adrenaline-fuelled activities which means you\'ll most certainly love our to supercar passenger experience in Hertfordshire. Upon arrival, you\'ll be welcomed to the centre at Hemel Hempstead. Once you\'ve been introduced to your professional racing driver, you\'ll make your way to your first chosen car for two incredible laps! Then onto the second car of your choice for another two super-fast laps! You\'ll choose two supercars from a lineup that includes the Ariel Atom 300, Dodge Viper SRT VX, Lamborghini Gallardo, Nissan GTR 1200BHP*, Tesla ‘ludicrous’ P90D, Audi R8, Aston Martin V8 Vantage, ‘Bullitt’ 1968 Ford Mustang, Lotus Evora, TVR 350c, Bentley Continental GT, Maserati Gran Turismo or Porsche GT2.*You can upgrade your passenger experience to the ultimate selection of GT race cars £15 per car on the day. This includes:  Lamborghini Huracan Super Trofeo, McLaren GT3, Ferrari 458 Challenge, Radical SR5. Please note that cars are subject to availability. There is also the option to upgrade the heavily modified Nissan GTR for £19 (subject to availability and weather conditions).  As standard, the GTR will run 650hp on low boost. With the high Boost Upgrade for £19, GTR will run 1200HP on high boost making it the most powerful supercar experience in the world! This two supercar passenger experience in Hertfordshire is an ideal experience for those who\'ve always dreamt of speeding along a track but in the hands of a professional driver for the ultimate thrill!