Sergio Perez says his chances of scoring points in the British Grand Prix were hurt by a collision with Jean-Eric Vergne on the opening lap of the race.

Heading through Turn 1 on the first race start, Perez and Vergne collided with the Force India being tapped in to a half spin and dropping to the back of the field. While both drivers escaped punishment, Perez - who did not claim that Vergne was to blame for the incident - said the clash prevented him from displaying the car's true potential.

"We can't really judge what our real pace was because the contact with Vergne at the start compromised our race," Perez said. "We dropped down to last and from down there it was very difficult to salvage something from this race. I struggled with the prime tyre early in the race, which would have been the best time to make up the ground I had lost.

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"The car felt a lot better on the options, after our pit-stop, but our final stint was not enough to get back into the points. It was a real disappointment after the good qualifying position we had and I feel that we deserved some points from this weekend. We need to focus on the next race in Germany and I believe Hockenheim will be more suited to our car."

Team-mate Nico Hulkenberg started in fourth place but could only finish eighth, admitting that Force India struggled in the windy conditions at Silverstone.

"It was quite a tricky afternoon," Hulkenberg said. "My start was not great; I lost a couple of places, and after that we didn't seem to have the pace to fight for big points. I was struggling with the balance, which may have been related to the wind because it was very gusty out there.

"I had some good battles, especially in the early laps, but we were just missing the performance to really fight. It's good to score points, but starting fourth we were hoping for more. We now need to regroup and come back stronger for my home race in Germany."