He graduated from the University of Colorado with a degree in molecular biology. He was slated to become co-host for the original American version of the motoring television series, Top Gear, on NBC and filmed a pilot before the series was not picked up. The series has since been picked up by the History Channel and Foust was the only pilot presenter to be picked up when the program finally made it on air in the U.S. in late 2010. He has also hosted other shows including SPEED Channel's SuperCars Exposed, SPEED Channel's Redline TV and ESPN's Import Tuners. On November 21, 2010, he made his debut for the History Channel series, Top Gear, the American version of the BBC hit series of the same name.