Is this video of a BMW drifting world's highest helipad a fake?

Because local building codes require helipads on skyscrapers, L.A.'s U.S. Bank Tower features the tallest building-based helipad. Not exactly the place you'd expect to find the BMW 1M drifting to the edge. Here's video of the 1M doing it, but here's why we don't think it's quite real. » 6/28/11 1:00pm 6/28/11 1:00pm