I don't think you'll see OK Go dancing on these treadmills any time soon (though, quite honestly, who knows with those guys?) That's because they're built for cars, not people (or cats). Gene Haas, a NASCAR team owner, collaborated with Jacobs Engineering to build WindShear Inc., an indoor road-testing facility that looks like something you'd see at the gym. It has sensors on it that can "read" each wheel, and was designed to eliminate error messages that arise in wind tunnels at high speeds.
See that treadmill belt? It's made of steel. And it can go at 180 miles per hour. Yeah, you don't want to be running on that thing.