Vitantonio Liuzzi says his sixth place finish in the Korean Grand Prix came 'at the right time' as he looks to silence the critics who have said he shouldn't remain with Force India for the 2011 F1 season.

The Italian has been under pressure after speculation that test driver Paul di Resta could be moved into a race seat next season, although the team has since suggested that it will field an unchanged line-up for 2011.

Despite that, Liuzzi said he was glad to have shown what he is capable of at the Yeongam circuit having started the race down in 17th place, with his performance being one that showed his potential.

"For the first time in a long time I had a really good feeling with the car," he wrote in his column for ESPN. "It was as if I was totally connected with it - working as one - and that meant I could push with complete confidence despite the tricky conditions.

"At recent races there has been a lot of speculation about my position but, as I've said before, this is my fifth year in Formula One and I don't really care about that anymore. But for sure it's still important to get results like this; to show people that when the car is good I am back in business and that I'm fast, I don't make mistakes and I'm always ready to take advantage of a chance when it comes along.

"This race was not just for myself but to show to other people what I can do and it's come at the right moment to show my potential."

Admitting that the race was fun because 'there was real emphasis on driver skill and not making mistakes', Liuzzi was able to finish ahead of the two Williams cars to aid Force India in the constructors' championship race and said he was keen to build on his points finish in the final two races of the year.

"I think it is pretty clear that in these conditions we are very quick and it would suit me if we had rain again in Brazil," he said. "But we know we can't rely on the weather and the team is still doing everything possible to beat Williams, because at the moment it is fair to say they have a better package.

"I've come away from Korea on a positive so hopefully we can keep that going for the next two races."