Thanks to a grant from Bell, Knoxville, Tennessee can call itself home to a brand new double black diamond trail that's just three miles from the city centre - the Devil's Racetrack. Who better to test it out than World Cup racer Neko Mulally who lives just across the state line in North Carolina?

We don't see much of the trail but it looks like has some cool features like a lengthy man-made rock garden and a huge bridge drop.