This is the triathlon of massive vehicles. After a briefing, start off at the wheel of a hi-view jeep to warm up, before taking a British-spec monster truck over some tough, purpose-built terrain. Experience a deliberate sideways roll-over in a 4x4 buggy. Then it's the bit you've been waiting for - with the help of a stepladder, get into the cab of the full-spec, 66-inch terra-tyred American monster truck. Deep breath in, then drive this amazing vehicle over the top of two saloon cars (they'll be well and truly wrecked). Steering this 7.5 litre truck on a mission of destruction is a pure adrenaline rush