Rubens Barrichello says he is refusing to give up on extending his F1 career despite confirming that he is considering a move into IndyCar competition.

The Brazilian veteran found himself without a drive for the year ahead after Williams elected to bring in Bruno Senna to partner Pastor Maldonado for 2012.

Despite previously stating that he wouldn't consider IndyCar due to the dangers of competing on ovals, news broke late last week that Barrichello was set to test for KV Racing.

Speaking to O Estado de S.Paulo, Barrichello confirmed that IndyCar was an option he was considering with the possibility that he could elect to miss the four oval rounds on the schedule.

"It's an important issue to be resolved," he said when asked about the danger provided by the oval races. "But before I think about it, first I have to know the car. There is always the possibility of running the season but not the ones on the ovals.

"I have no contract with anybody so there's nothing stopping me doing it [the test]. I'm doing it with my mind wide open. If I can get the passion with that car that I have always had when I am driving, then why not? I love racing."

However, while admitting that IndyCar could be option, Barrichello said he still hadn't given up hope of extending his F1 career - a career that has already seen him start more races than any other driver.

"The dream of competing in my twentieth season is still very much alive. You never know," he said. "Sometimes things change for all sorts of reasons and someone calls up your speed and experience. Kimi Raikkonen and Michael Schumacher came back, so there's no reason I could not as well.

"The reason I am not staying with Williams is not about the driving. Frank called me personally and began by saying they had decided to sign another driver. It is known that Williams is having difficulties with their budget and they had to choose an option more in line with their needs. That's understandable.

"Bruno called me and he was almost upset so I told him to stop it, we're friends. I wished him all the best. I said that my dispute was with Williams, not with him. Let's see how they go with the problem of being inexperienced and developing the car, but in his favour the engineers have told me they will have a better car than I had last year. If they have the money, Williams can develop."