Ferrari is still pushing hard to arrange a third Formula One car for Michael Schumacher to race in 2010.

With BMW and Toyota now departed, Renault thinking about following suit and the famous Italian team scornful of the sport's new entrants, Luca di Montezemolo has renewed his campaign to have the rules changed.

"This is perhaps an opportunity to have a third car for each team," the Ferrari president told Bild newspaper. "I will do everything I can. And naturally we are thinking of Michael Schumacher for our third car."

At the same time, Schumacher - despite calling off his return in Felipe Massa's car in August due to injury - is not ruling out making another bid to come back to the grid.

"Let's put it like this, I do not see a reason why I should confirm or rule out anything," the seven time world champion told told XPRESS newspaper in Dubai.

However, Sir Frank Williams doubts the 40-year-old German is serious.

"Not a chance. No," said the Briton, who believes Schumacher decided against returning this year after underestimating his fitness.