Calling all petrol heads put those driving skills to the ultimate test with a high octane outdoor grand prix karting experience in hertfordshire start with an all important safety briefing before donning official race wear and taking part in a 15 minute qualifying session to get used to the track and determine your grid position for the main event after catching some breath its time for the real action to begin tear around the challenging rye house track in a speedy 360cc racing kart for