Felipe Nasr says his points haul at Sochi will act as a major boost for the remainder of the 2015 Formula 1 championship and going into next season.

The Sauber driver says he was thrilled by the pace he could run at in the Ferrari-powered C34 and after profiting from the misfortune of those running ahead of him he grabbed a creditable sixth place finish, promoted from seventh after Kimi Raikkonen's post-race 30-second penalty for colliding with Valtteri Bottas on the final lap.

"It is very good points and a very good race, especially in the first half of it," Nasr said. "The pace of the car was really, really good especially with the super soft tyres so I tried to do the longest stint possible because the balance of the car was really good.

"After the pit-stop I lost a little bit of time behind the McLarens. I was a little bit lucky in the end because some cars in front didn't finish the race, but the car had good pace and I knew how to take advantage of the chance that I had."

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Despite Sauber having another tough season towards the back of the F1 grid, Nasr's sixth place has given the Swiss team a timely push ahead of the season run-in. Sauber has extended its points advantage over McLaren in the constructors' championship as well as closing the gap to Toro Rosso to 11 points in the fight for seventh place.

With one eye already looking towards the final four races Nasr is fully aware how vital his points could be for F1 prize money and the team's capabilities for 2016.

"Any help right now is good. We know that our situation is not easy, our package has limitations and the more points we score that will help us and motivate people to work even harder for next year. The more we do now the better."