Kubica still undecided on future drive

"I haven't made my choice yet," Kubica told reporters at Suzuka. "From me, in my point of view, there is not 100 per cent confirmation where I will be and we will have to wait.

"My options were not Ferrari so it did not depend from Fernando [Alonso] if he would go there or not, what I will do in the future.

"It takes a bit of time to fix everything, to make a deal, and that is it. I think now if the period where you will have to decide and in the end from the driver point of view and team point of view, it is better to have closed the deal and everything, so sooner or later we will know where we will be."

The BMW Sauber driver said he continues talking with the Renault team, who will announce Fernando Alonso's replacement next week after the Spaniard confirmed his move to Ferrari from 2010.

Despite Renault's announcement, Kubica insists nothing is signed with the French squad.

"Then they have decided, but as I said there is nothing 100 per cent sure," he said of Renault's plans to announce its driver next week.

"Until I sign the contract it is difficult to say where I will be racing. Once I sign the contract we will see."

When asked how confident he was that his preferred option will happen, he said: "95 per cent, 90 per cent."

The Pole suggested staying at his current team was still a possibility, but admitted there were more options than just that and Renault.

"I think there are some other options apart from these two. But, as you say, there is never 100 per cent a guarantee of performance as I said before, who will be quick and who will not be quick, but it is a difficult period for all of F1, not only for this team but for all teams, most of the teams.

"There is always kind of uncertain points on the future, but I think this will not be the case of the team in which I will go."