Sebastian Vettel is unsure of whether he will be able to challenge for victory in Singapore tomorrow despite qualifying on the front row of the grid for the first time since the German GP in July.
The 22-year-old, who still has an outside chance of winning the championship despite lying 26 points behind leader Jenson Button, said that he was relieved to be back at the front of the field.
"I don't know, none of us can answer this question," said Vettel of his expectations for the race. "The first run in qualifying was very important but unfortunately then the red flag came out.
"At the end of the day, it is great to be back. Qualifying on a street circuit is very important and it's good to be back in front. We will see what happens with the weights now."
Vettel added that he was pleased with the balance of his Red Bull-Renault after the team tried several upgrades for the first time on Friday.
"The car is very good and I'm feeling very comfortable," said Vettel. "We brought some stuff that seems to work.
"Tomorrow will be a long race. It's 61 laps, so it will be warm in the car, but we have all that it takes. I'm looking forward to tomorrow."