The Tridika is a conceptual driverless electric vehicle I created to change how we use cars in our ever-growing cities, where space is expensive and limited. Inspired by Thyssenkrupp's Willy Wonka-esque Multi elevator, the Tridika works like a self-driving car you can literally park next to your apartment and use as an additional room.

Instead of wheels, it works like a maglev train: magnets lift and propel the vehicle. It pulls its electricity from the tracks, and takes you wherever you command. The boxy shape optimizes interior space: You could configure it to travel with up to six passengers or create a fair-sized office space to work while you commute. New apartment towers and condos could be designed and built to accommodate them.