Rosberg: It was under control

Nico Rosberg says he had the British GP under control when a gearbox issue forced him out of the lead at Silverstone.

It was the first time the German has failed to finish a race this season and it handed victory to Lewis Hamilton, allowing the Briton to narrow the gap in the drivers' championship to just four points.

Hamilton was closing on his team-mate having pitted for the hard Pirelli tyres when Rosberg retired, but the German rejected any suggestion he was under threat for victory.

\"It is always a good battle, but I was very much in control up until then which is why I was all the more disappointed,\" the championship leader told Sky Sports F1.

Rosberg added that his issues first arose after the first round of stops and that he tried everything to keep going.

"It was just slowly but surely," he said. "The first problem started around lap 20 after the pit-stop and then it just got worse from there.

"I was trying to think if there was some safe setting we could put it in or just drive in a completely different way just to get to the end of the race - okay I would let Lewis go, but it would still be valuable points if I could get to the end. But there was nothing that I could do or that they could suggest to save the gearbox."

Whilst disappointed with the retirement, Mercedes Executive Director (Technical) Paddy Lowe admits it is always a risk given how on the limit the cars are built.

"Formula 1 cars are always fragile as they are built right on the edge," he said.

"You need the ultimate performance so it means things are built lighter and smaller than ever. I think it gives people a glimpse for people of how complex the cars are and it is not always an easy ride. There is a lot of paddling under the surface to keep these cars as successful as they are."