The £5,500 QTvan is the world’s smallest caravan and is designed to be towed by a mobility scooter along the pavement or even inside a supermarket. It is perfectly suited to queuing overnight for best spot on the Royal Wedding procession route, the start of the sales or for tickets ahead of Wimbledon fortnight. The QTvan is so named because it caters to three peculiarly British obsessions: queuing, tea and caravans. As well as a 19″ television on which to watch the ceremony highlights, and a drinks cabinet with which to toast the happy couple, the tiny caravan boasts tea-making facilities – essential for a royal day out.