Test Track is classified as a "High Thrill" attraction, but it is unique because it focuses more on speed and environmental "testing" than on traditional drops or inversions. The ride is a "high-speed slot car" experience where guests design a virtual concept vehicle and then board a 6-passenger "SimCar" to see how it performs. The "thrill" comes in two stages: first, a series of indoor tests featuring sudden braking, rough terrain, and a "near-miss" semi-truck encounter; and second, the grand finale where the car bursts outside and accelerates to a top speed of 65 miles per hour on a banked track. This makes it the fastest ride in all of Walt Disney World. While it doesn't have the stomach-churning drops of a roller coaster, the 50-degree banked curves and the feeling of wind in your face at highway speeds provide a significant adrenaline rush. It has a height requirement of 40 inches (102 cm), making it a great "step-up" thrill for older children who are ready for something more intense than Frozen Ever After but aren't quite ready for a full-blown coaster.