Video: Mercedes fire up their 2017 engine

Mercedes have fired up the 2017 power unit that will be bolted on the back of their W08 which will break cover on 23 February at Silverstone.

The power unit, which will be used by Lewis Hamilton and Valtteri Bottas during the forthcoming F1 World Championship, was shown being fired up at the team’s Brackley headquarters.

Williams and Force India will also be using Mercedes power this season.