Not only is it the only 200 mph rolling-road wind tunnel, but it is also one of four in the world to have an interchangeable treadmill surface, or belts. A five-belt surface has one at each wheel, with a larger center belt, allowing speeds up to 155 mph and quicker vehicle installations. Swapping out the 70,000 pound assembly for the 90,000 pound single belt unit will allow for 200 mph speeds.
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