Benedict is the Star In A Reasonably Priced Car
The actor takes part in the Star In A Reasonably Priced Car challenge, driving a lap of the motoring show’s famous track in a Vauxhall Astra 1.6 Tech Line.
Benedict, 36, will try to impress The Stig and beat the best lap time on the leaderboard, which is currently topped by AC/DC star Brian Johnson.
He’ll also sit down for a natter with presenter Jeremy Clarkson.
Fans expecting spoilers from the upcoming third series of Sherlock might be left disappointed though – it was revealed this week that the cast have been banned from giving any secrets away.
Will Benedict use Sherlock-like logic to crack the Star In A Reasonably Priced Car challenge?
Find out when the show is screened on BBC Two at 8pm on 14 July.