'The position we are in now makes it very difficult,' admitted the 65-year-old.

The Formula One Teams Association (FOTA) has announced it will stand behind any attempt to save Sauber with general secretary Simone Perillo announcing Wednesday that FOTA was ready to give 'every necessary support' to the Swiss-based team.

BMW took over the team in 2005 and debuted in the Formula One a year later. In 63 races to date, BMW-Sauber so far has celebrated only one victory, by Polish driver Robert Kubica in Montreal, Canada, in June 2008.