Romain Grosjean thinks set-up change key to regaining confidence

The Frenchman said a new set-up direction meant he was not fully comfortable with his car at Hockenheim, where he finished in 18th position after an incident on the opening lap.

Grosjean says he needs to regain the confidence that made him shine in the first half of the season, and he is optimistic he and the team have understood his problems and will be able to solve them for Saturday.

"It's the same as was the case at Hockenheim. The good thing is that we sat with the engineers and we understand a few things about why we struggle," said Grosjean of his car's handling.

"Tomorrow we are going back to do some set-up changes we made in the past to help me, and if I get my confidence back in the car and back to my driving style then I can get the best out of the Lotus, then we should be able to fight in front.

"I just want to get back the confidence, the set-up I like from the past and not struggling as it was the case at Hockenheim."

The Lotus driver said he had been trying to drive around the problem he is having, but admitted that had not worked for him.

"As a driver there a few problems with the car that you can solve with your driving style, but there are others you can't, and this is what's happening," he said.

Grosjean finished the day ninth quickest after a spin that cost him a front wing.

"I made a mistake. I was a bit optimistic. I was a bit on the grass at Turn 7 and lost the car. Sorry for the guys that made the front wing, but hopefully we can have a new one."