Nico Rosberg has lamented a weekend of "setbacks" at Silverstone and warned Mercedes they need to improve if they don't want to get left behind.
The Brackley squad headed to the British GP in high spirits after they picked up 23 points in Valencia a fortnight ago. Michael Schumacher's P3 in qualifying also gave them hope of scoring another decent haul of points.
However, both Schumacher and Rosberg struggled come race day with the seven-time World Champion finishing seventh and the latter slipping to a disappointing 15th.
"I went into the weekend really optimistic thinking if everything goes well I will be in for a podium," the 27-year-old said on his video blog.
"In the end really it was a weekend of setbacks. The weather was up and down, and generally it was a pretty crazy weekend."
Next up on the calendar is the German Grand Prix and Rosberg feels the team need to raise their game for the home race if they want to keep up with the likes of Red Bull and Ferrari in the Championship.
"The others are really attacking now, especially the teams up front, and we've really got to get our act together to make sure that they don't get away from us in the mid-season - that's very important," he said.
"So I am looking forward to Hockenheim. It is a track that suits us much more, racing at home, and I am optimistic we can do a top result there."