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Sauber was left disheartened at the Chinese Grand Prix after it failed to convert its promising qualifying positions into strong results on Sunday.
Kamui Kobayashi, who started third, scored the team's solitary point in tenth whereas Sergio Perez too went backwards from eighth to finish 11th.
“Of course after what we did in qualifying the race result is disappointing," the two-stopping Kobayashi said. "I’m not really sure what happened at the start, my car just didn’t move, it was a bit strange and I lost positions immediately.
"Then I was stuck in traffic for most of the time, also we made the second pit stop a bit late and the tyres had gone. Quite often we have recovered in the race from a bad qualifying, but today it was the other way round. So we have proven we can be strong in both qualifying and race, and next time we will put this all together,” he added.
Perez meanwhile reckoned that a three-stop strategy would have probably been the better the option even though the two-stopping Kobayashi's tyres wore out earlier than expected. The Mexican driver also had issues with his clutch on his both his stops which added to the problems.
"Initially we had a three stop strategy for both cars, but then we didn’t want Sergio to have the same problem (as Kobayashi) and we reverted him to two stops, which was still a good strategy," explained head of track engineering Giampaolo Dall’Ara.
"But then we lost time at the first pit stop with a clutch problem, this cost him two positions and, as the final point, we expected overtaking to be easier for our cars, which eventually didn’t happen," he added.