London (BTG): Actor Idris Elba swapped the film set for the roads as he did some test driving ahead of his participation in the Circuit of Ireland Rally. Motoring buff Elba, who played Nelson Mandela in the film Mandela - Long Walk To Freedom, was behind the wheel in rural County Monaghan. The 42-year-old actor, who won a Golden Globe for his role in the BBC crime thriller series Luther, is taking part in the rally event on Easter weekend as part of a new documentary series. In the four-part series for Discovery TV, Elba is pledging to test his limit racing on land, water and in the air.