Top Gear

Top Gear is a British motoring show that airs on the BBC.

Doctor Who
There was once a segment on Top Gear where they were trying to find the fastest intergalactic person around the track. There were three Doctor Who characters, a Dalek, Cyberman and The Doctor. The Dalek couldn't get in the car and as a result, went around exterminating everyone. The Cyberman went on to win with the fastest time.

Star in a Reasonably Priced Car
Top Gear also hosts a challenge in which celebrities race around the Top Gear test track. Some Doctor Who actors have taken part:
 * Christopher Eccleston
 * David Tennant
 * Billie Piper