Top Gear's Celebrity Countdown

'Top Gear''s most memorable celebrity moments countdown to 18. Matt Smith takes a break from the TARDIS to try out a Reasonably Priced Car, Andy Garcia hams it up with Jezza, Tom Cruise has all the right car moves, Cameron Diaz and Helen Mirren show their automotive prowess and Ryan Reynolds can't do manual! Catch the Season 18 premiere on Monday, April 16 at 8/7c.