Sauber's technical director James Key believes it will be possible for his team to secure sixth place in the championship this year, although he concedes it will not be easy.
The Swiss squad has scored points in all but two of the first 10 races of the season and sits rather comfortably in sixth position in the constructors' championship. Force India is 15 points behind, having scored 20 in total, with Toro Rosso down on 17.
Key said keeping sixth place is a realistic goal, but he is aware that the improved pace of Force India will mean the battle is very tough.
"They've certainly taken a step forward and I think we need to do the same," said Key. "I think we've had a particularly bad weekend because we haven't suddenly taken a second per lap off the car. We haven't been very quick here in the conditions so I'm hoping it will equalize out a bit more in the next event. I think we have to watch out for sure but we have updates outlined and quite a big points advantage.
"Also, Renault were certainly stronger this weekend but somehow we finished ahead of them. There is still half a season to go. It will be bloody tough, but I think it's possible and I think we should aim for that."
Sauber had a difficult time in Germany last weekend due to the low temperatures and the nature of the track, but Key is hopeful the Hungarian Grand Prix will see the team performing better.
"A warm and sweeping circuit is generally pretty good for us. We will have to watch traction but it should be quite a reasonable track for us. Certainly better than this," he added.