EARLIER THIS YEAR, Singapore’s Autobahn Motors unveiled what might be the coolest way to buy a new car: the world’s tallest supercar vending machine. Designed to make smart use of the Lion City’s congested streets, the 15-storey building is jammed with luxury cars, ready to dispense a Mclaren 650S or Ferrari California T at the push of a button. Tap on your vehicle of choice on a touchscreen display, and it will descend via elevator. And no, whacking the side of the building won’t get you a free car. Easy there, Fonz.