Ross Brawn thinks his team will need to deliver a step forward in performance at the German Grand Prix to fight off the renewed challenge from Red Bull Racing.
"Red Bull have been pretty close all year, so I think we have got to find some performance because they made a good step at Silverstone. With the confusion over the tyres, we didn't run some new pieces we had because Friday [at Silverstone] was very difficult with the tyre temperature. We couldn't determine how the new bits were working, so we decided to avoid confusion and went back to what we had in Turkey. So we've got those bits and we have some new improvements for the Nurburgring."