Red Bull driver Mark Webber has revealed that he is unsure what the future holds for him.
After admitting to holding talks with Ferrari over a possible switch ahead of next season, the Australian put pen to paper on a new one-year deal with his current employers.
Having made his debut in the sport 10 years ago, the 35-year-old doesn't know how much longer he will race for.
When asked if the 2013 season would be his last, Webber responded: "I've been asked this question for the past four years and my answer remains the same.
"It's a results-based sport at the front of the grid so the future lies in my own hands.
"It's down to me to deliver the on-track results."
Webber won the British Grand Prix at Silverstone on Sunday.
