Mosley presses teams for action

In a letter written to the teams on Wednesday, which autosport.com has seen, Mosley expressed his disappointment at every outfit apart from Ferrari choosing not to attend the meeting - and urged them not to miss the next meeting planned for April 15.

"I was disappointed that, with the exception of Ferrari, no-one attended the last meeting," he said. "Its purpose was to discuss the points raised by the four teams (BAR, Ferrari, Renault and Williams) who responded to my request for proposals to save costs and also to examine any ideas the other teams might have put forward during the meeting.

"I made a list of the four teams' proposals, many of which seemed quite promising, and circulated them together with the actual documents received. They seemed to offer a good basis for a productive meeting.

"It is only through discussion that progress can be made. Now is the time to begin talking about 2008, because the sooner we start the more likely we are to find consensus. At the same time, it may still be possible to reach unanimous agreement for a limited number of cost-saving measures during the current Concorde Agreement, perhaps as early as 2006.

"But this can only happen if everyone participates in the discussion. Soon after the 15 April meeting, change for 2006 will become increasingly difficult and/or expensive and unanimity will no longer be achievable."

Earlier this week, Renault boss Flavio Briatore claimed that there was no need to rush into making firm decisions about future changes - because 2008 was still so far away.