Fifth position in the standings not good enough for Mercedes, says team chief Ross Brawn

The German squad had a promising start to the season, with Nico Rosberg scoring his maiden win in the Chinese Grand Prix, the third round of the championship, and enjoyed other strong races.

But its form has dipped in comparison with some of its championship rivals more recently. The team is now fifth in the standings, 83 points behind Ferrari.

"I want to do better. P5 is not our ambition and we will do anything possible to end better," Brawn told the official Formula 1 website. "There are still a lot of races to come with many more points to be won."

Brawn is confident, however, that the second half of the year will be better for his team.

"We haven't got the car quite as we wanted right now, but we have a very good team - very good people - so I am optimistic that we are going to have a stronger second half to the season than the first half," he said.

Despite his desire to do better, Brawn reckons the team's performance so far has been pleasing.

"I think we are pleased with some of the achievements this year. We've won a race and had some strong podiums, and we've scored more points than we'd done this time last year.

"But, of course, we also feel that we are not quite where we want to be in terms of consistent competitiveness. We are still working on strengthening the team, strengthening the designs to be more competitive in the future."