Heidfeld sorry to miss out on points

"I am very disappointed because today we had the speed to score points, which obviously hasn't always been the case this year, but several things just went wrong," said Heidfeld after finishing in tenth position.

"The start was good for the first few metres and I tried to improve my position, but Adrian Sutil's defending was very tough.

"Then the first stint wasn't easy with the heavy fuel load. But during the middle stint I was able to catch up until I lost some time behind slower cars, including that of Robert.

"Then I had bad luck at the pitstop, as we were ready to leave the pit, but then a Renault came in and I had to wait. It felt as if it took ages before the lollipop went up."

BMW Sauber had another point-less race after Robert Kubica finished down in 14th position, the Pole having struggled with his car all weekend.

"I had a very good start and gained a lot of positions on the first lap," he said. "Although I had a lot of tyre degradation, the first stint was quite good. Nico Rosberg was on primes in front of me and he was really quick.

"I changed to primes for the second stint and after a couple of laps I noticed that the tyre pressures were not right.

"Unfortunately this cost me a lot of lap time and I still had around 20 laps to go. Everybody in the team is working very hard and we are getting slightly better each weekend, but there is still a big gap to the frontrunners."