Adrian Newey isn't afraid to put his own creations to the test. The 62-year-old joined Red Bull in 2006, and his arrival saw the team slowly make their way up the grid before winning four world titles form 2010 to 2013.
Here he gets to test one of his creations, the Red Bull RB6, that helped Sebastian Vettel claim the first of his four world drivers' championships.
Watch the footage of Newey, Horner and David Coulthard below.