The Audi quattro Experience

The Audi quattro Experience is a one-of-a-kind interactive installation that features a 20-foot by 7-foot, handcrafted raceway built by custom slot track builder David Beattie of Slot Mods USA. The scale model Audi A4 slot cars were made from scratch with in-car cameras that allow racers a first-person look as they zip around the track, through the world's first iPad-enabled controllers. Here's a behind-the-wheel look at how David and his team raced to get this project finished.