kkleiner writes "You think European cars are small now, wait till the Hiriko takes to the roads in Spain's northern Basque country. The two-seater is about the size of a SmartCar, but when parked, the car can actually fold. After folding, the car takes up about a third of a normal parking space. The Hiriko, Basque for 'urban car,' folds as the rear of the car slides underneath its chassis. Every square foot counts."