Yes, Test Track at EPCOT is officially the fastest ride at Walt Disney World Resort. Reopening in its third iteration (Test Track 3.0) in late 2025, the attraction continues to reach a top speed of 65 miles per hour (approx. 105 km/h) during its outdoor high-speed loop. While other rides like Guardians of the Galaxy: Cosmic Rewind and Rock 'n' Roller Coaster provide intense acceleration and high-speed sensations, they typically top out around 60 mph and 57 mph, respectively. Test Track is designed specifically to showcase automotive performance, taking guests through a series of "capability" tests before the final power run. In 2026, it remains the reigning speed champion of the Florida parks. Interestingly, while it is the fastest at Disney World, it is slightly slower than some of its international cousins, such as Tron Lightcycle Power Run in Shanghai, but within the domestic US Disney parks, nothing currently beats the 65 mph mark set by this EPCOT classic.