Walt Disney World’s Magic Kingdom’s Tomorrowland Indy Speedway’s vehicles’ engines’ fuel has been going through some experimental changes of late. Imagineers have been testing a number of vehicle prototypes for possible future use in the attraction, including vehicles that run on ethanol (from plants grown in Epcot’s The Land pavilion), electricity (generated by the movement of guests in the attraction queue), and natural gas (from the WDW stables).
According to reports, initial tests have been successful. But, surprisingly, guests overall preferred the nitrous-oxide-powered vehicle to any of the more energy-conserving vehicles. Who knew?