Heikki Kovalainen has refused to rule out a move away from Caterham at the end of the current F1 season, admitting that he has yet to speak to his current team about his future beyond 2012.

Kovalainen had led the team since it joined the grid as Lotus back in 2010 but has yet to score a point, with rumours suggesting he could be a target for rival teams on the grid for 2013 once his current deal has come to an end.

Speaking ahead of the British Grand Prix this weekend at Silverstone, where Caterham is due to introduce a major upgrade in an attempt to improve performance, Kovalainen said he hasn't yet discussed his future plans with any team and was putting all of his focus into trying to secure the best results on track for the remainder of the season.

"I haven't spoken to any of the teams yet, not even to my team yet," he told Sky Sports. "All I know is my contract is finishing this year with my current team, but at the moment I am just worrying about getting the most out of what I have got.

"Whatever happens, I think that will put me in the best position either with the current team or with some other team, but we aren't at that stage yet with myself or my management."

Kovalainen added that his future plans could be largely dependent on what happens to a number of other drivers on the grid with the rumour-mill set to go into overdrive in the coming months as seats are filled for the new season.

"I think it is a bit too early and there are a few guys ahead of me in the queue, things like what Lewis will do or what Michael will do, will probably have an impact on what everyone is doing," he said. "We haven't talked to anyone yet, no one has talked to us yet and at the moment I am just focusing on my performances.

"Regardless though I think my performances have been good, I think I have found my swing again in the Formula 1 paddock and that is good for the future. Teams expect drivers to deliver and I feel that is what I am doing now. Let's see what the future will bring, regardless though it will be good."

The former Renault and McLaren man said his current aim was to try and show that the speed shown by Caterham in Valencia - where he made it through to Q2 and team-mate Vitaly Petrov briefly ran in the top ten - was no one-off.

"First of all we need to confirm the pace we had in Valencia at Silverstone as it is a completely different type of circuit, so we need to confirm that our car is performing on the high speed circuits as well," he said. "Once we do that, and if we can do that at Silverstone, hopefully we will be even closer to a few more cars, then a small gain will be a big step forward.

"I am quietly optimistic, fingers crossed, but I think we are better to wait and see before we make too many predictions. We've done that in the past, talked about big points and big upgrades and we haven't delivered but I think in Valencia, we didn't talk about it too much and we actually delivered and it is better that way and hopefully we can do the same at Silverstone."