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With the design process complete, four street-ready race cars were constructed, with each vehicle possessing 65 carbon fiber panels and costing $250,000 to build. Two of the four cars were specialized versions. One version was the flap version, which had hydraulics and flaps to detail the close-up shots where the vehicle propelled itself through the air. The other version was the jet version, in which an actual jet engine was mounted onto the vehicle, fueled by six propane tanks. Due to the poor visibility inside the vehicle by the driver, monitors were connected to cameras on the vehicle body. The professional drivers for the Tumblers practiced driving the vehicles for six months before they drove on the streets of Chicago for the film's scenes.
The interior of the Tumbler was an immobile studio set and not actually the interior of a street-capable Tumbler. The cockpit was over-sized to fit cameras for scenes filmed in the Tumbler interior. In addition, another version of the Tumbler was a miniature model that was 1:5 scale of the actual Tumbler. This miniature model had an electric motor and was used to show the Tumbler flying across ravines and between buildings. However, the actual Tumbler was used for the waterfall sequence.