they went through Mark I, II, III, and IV by 1958. When the Monorail, Submarine Voyage, and Matterhorn debuted in 1959, so did a new fleet with an all-new look – the "Mark Vs". The next design, Mark VI, came in 1964. It was at this time (1965) the center guide rail was first installed. 1967 brought another new design, the Mark VIIs, which cost $5,000 for each car and looked similar to the new Corvette Stingray. They would remain in service through 1999, till a breed of Mark VIIIs would hit the Autopia roadway. The cars were manufactured by Intermountain Design, Utah The Tomorrowland version was not the only form of Autopia to exist at Disneyland. Other versions, separate from the Tomorrowland version, included the Midget Autopia, Fantasyland Autopia (Rescue Rangers Raceway), and Junior Autopia. Of these, the Tomorrowland Autopia existed the longest. The Midget Autopia opened in 1957 and was manufactured by Arrow Development. It was the smallest and was the third Autopia track, after the Tomorrowland Autopia (1955) and the Junior Autopia in Fantasyland (1956). It was located next to the Storybook Land Canal Boats and the Motor Boat Cruise at the very edge of Fantasyland. Adults were not allowed on the ride. It was closed in 1966 and dismantled to make way for It's a Small World. The ride was then donated to the city of Marceline, Missouri, where it operated in the Walt Disney Municipal Park for 11 years until parts were no longer available for the cars. One of the cars is on display in the museum whereas the concrete track on which the cars ran was ultimately demolished in 2016 to facilitate replacement of the city pool. In 2015, the Walt Disney Hometown Museum made plans to recreate the ride next to the museum in downtown Marceline, launching a Kickstarter campaign to finance the project. The project attracted a fraction of the $500,000 required to reconstruct the vehicles and track. Unlike all other Autopia attractions, Midget Autopia was one of several of Arrow Development's "off-the-shelf" Arrowflite Tracked Auto Rides built at several amusement parks throughout the country, at least one of which still operates at Idlewild Park in Pennsylvania. The Fantasyland Autopia began as the Junior Autopia in 1956. Unlike the original Autopia, the Junior Autopia track had a center guard rail. It closed in 1958, and reopened on January 1, 1959 as