Hamburg - Motorsport's world governing body FIA and the Formula One teams' association FOTA appeared no nearer to ending their differences Wednesday.

Rejecting a proposal to extend a deadline on new entries, FIA president Max Mosley told FOTA to accept the rules for 2010 by Friday at the latest.

If necessary these could be revised in new negotiations, he said.

Mosley was responding to a letter from FOTA which put forward "compromise" proposals in a bid to end the row over rules and funding.

Mosley maintained that if Formula One started to modify the governance provisions of the Concorde Agreement governing the sport it would lead to a lengthy discussion.

"There is no time left for this because we must answer the remaining applicants for 2010 no later than Friday," he said.

Instead he suggested acceptance of the 1998 agreement which could then lead to negotiations on a 2009 Concorde Agreement.

"After all we lived with these for 10 years, a few more weeks or months should not cause any difficulty," he added.

FOTA had written to FIA in a new effort to end the dispute, saying: "We must all seek to compromise and bring an urgent conclusion to the protracted debate regarding the
2010 championship."

The continuing row has overshadowed the Formula One season, with Friday's deadline for unconditional entries for next season coinciding with the first day of practice for the British Grand Prix at Silverstone.

In its letter to Mosley and Formula One's commercial head Bernie Ecclestone, FOTA suggested extending the entry deadline to July 1 to ensure the dispute is sorted out amicably.

It also called for a firm of independent accountants to monitor any budget cap - which it called a "resource restriction" - saying that if implemented "a solution might be possible."

FOTA said the letter "represents significant movement by the teams, all of whom have clearly stated a willingness to commit to the sport until the end of 2012."

It added: "We would therefore strongly, but respectfully, submit that you consider these proposals and seek to avoid the potential departure from Formula One of some important teams. Now is the time to find a reasonable and rapid solution to the outstanding issues."

FIA and FOTA have been at odds for weeks since FIA decided on a budget cap of around 60 million euros per team and year. Led by Ferrari, the eight FOTA teams have threatened to quit F1 if their demands over the issue were not met.

However, FIA last week included all 10 current F1 teams on the list of entrants for next year. Five of them - Toyota, Brawn GP, McLaren-Mercedes, Renault and BMW Sauber - were made provisional and given until Friday to drop their conditions.

Ferrari, Toro Rosso and Red Bull were included on the list as unconditional entries against their wishes.

All eight make up FOTA, while Williams and Force India were suspended from the organization after they signed up unconditionally.

Three new teams - Campos, Manor and US F1 - have also been accepted.

FIA has said if there is no agreement by the Friday deadline, it would consider more new teams who have applied to enter next year. One of those, Lola, meanwhile dropped out of the running on Wednesday.(dpa)