TopGear runs Heathrow

Because, when you're sat way up there in the cockpit, it's almost impossible to see bits of rubbish down on the ground. It's not easy to see things driving about, either. So whether you're in a Lambo or a catering van, you move around an aircraft like a dinghy moves around a cruise ship - one that may drop right out of the sky and onto your roof. Sometimes they loom out of the fog, giant fuselages towering above you like shadowy hulls. Once docked, you may approach with caution, but, even then, you must stick to the correct areas, or risk a minor squashing. Up to 20 vehicles do this for each flight: gathering around a plane like a well-choreographed school of fish, taking their cue from air-traffic control and a department that assigns each flight a parking place.