Speaking of Doctor Who (+1'd earlier: Sherlock coming to Who?), yesterday's episode of Top Gear in the UK featured Matt Smith in their Star in a Reasonably Priced Car segment.
His first tries around the track should probably be called 'Spectators Run When a Good Man Goes a Lap'.
You can watch the full segment on YouTube to see how he faired compared to other Who alums that have appeared on the show.
The rest of Top Gear was great as always. They finally showed the challenge they have been talking about for a few weeks about doing other things while driving. Specifically Jeremy sewing a button onto his shirt while doing a lap, and James doing a lap in a sleeping bag (with the heat on thank Hammond).