From the BBC:
"A fun idea by two BBC staff members has resulted in a hilarious mash up of Doctor Who and Top Gear.
Inspired by his colleague Simon Catt, Matt Taylor of the BBC's Repeats & Reversioning team had the idea of combining David Tennant's appearance in Top Gear's Star In A Reasonably Priced Car slot with clips of the TARDIS in flight from Doctor Who.
The result - with Jeremy Clarkson talking Tennant through his spectacular 'lap' in the Space/Time machine - so impressed their boss Gill Holmes, that it found its way to Mark Harrison, Head of the BBC's Multiplatform Studio and then to Peter Salmon, Chief Creative Officer of the BBC Vision Studio."
To see DAVID TENNANT'S appearance on TOP GEAR, click HERE.