No, Test Track at EPCOT is not technically a roller coaster, though it is often mistaken for one. It is a slot-car-style thrill ride (specifically a "High-Speed Slot Car" system) developed by Dynamic Attractions. Unlike a coaster, which relies on gravity and a fixed track for momentum, Test Track vehicles are powered by individual electric motors and have a specialized suspension system that allows them to simulate different road conditions, such as "braking" and "rough terrain." The ride's most famous feature is the outdoor "high-speed loop" where vehicles reach a top speed of 64.9 mph (104.4 km/h), making it the fastest attraction at Walt Disney World. Because the cars are physically "driven" by on-board computers rather than coasting, it lacks the traditional drops and "lift hills" associated with roller coasters, instead focusing on the sensation of automotive performance and speed testing.