This vending machine in Singapore is probably the most expensive right now. It is not difficult to see why as the machine, which is actually a 15 story building, sells luxury vehicles. The building works the same way as a regular vending machine, with cars on display. A touchscreen display allows customers to look and select the cars they are interested in buying. The giant vending machine offers some of the most expensive cars in the world, including Ferraris and Lamborghinis.