Design your own virtual concept car and then test it on a high-speed track reaching 65 mph — the fastest attraction at Walt Disney World. The interactive pre-show lets you customize your vehicle's capability, efficiency, responsiveness, and power before boarding six-passenger SimCars for a series of tests including sharp curves, environmental chambers, and the thrilling outdoor speed run around EPCOT's exterior. Located in World Discovery, the single-rider line is one of the best time-savers in the park.