Bruno Senna hopes to sort future in Formula 1 as soon as possible

The Brazilian made his return to racing in the second half of the 2011 season after not managing to secure a drive for the start of the campaign.

Senna replaced Nick Heidfeld at Renault from the Belgian Grand Prix.

He said on Thursday he is yet to sort out his future, but claimed to be working very hard to try and stay in Formula 1 as a racing driver next year.

"It's still to be seen," said Senna during Thursday's press conference at Interlagos. "I'm working very hard for the seat and hopefully we will know the future as soon as possible."

Senna, who has managed to finish in the points once in seven races, believes he has put on a solid performance despite Renault's lack of competitiveness in the latter part of the year.

"It has been very tough, of course," he said. "Competing with guys who have tested and done the whole season. The guys here are best drivers in world, and mixing with them very satisfying. Overall it's been a good experience.

"It would be better if I had done the whole season, for sure, but I am pleased with the results. There have been ups and downs but the performance speaks for itself. Hopefully we can finish this race on a high note."