Mar.17 (GMM/ Red Bull has been isolated from F1’s other teams, as the FIA is asked to step in and police their cost-cutting efforts.

Last year, there remained suspicions the energy drink owned team – the winner of the past two world championships – flouted the ‘resource restriction agreement’ (RRA).

But the agreement was only an initiative of the teams’ trade union FOTA, which has now essentially collapsed.

Moreover, the agreement includes only financial sanctions for breaches, and Red Bull was never penalised anyway — Ferrari’s Luca di Montezemolo said recently he didn’t push the issue “Because I didn’t want it to be an excuse for our performance”.

A letter has now been addressed to FIA president Jean Todt requesting that the governing body step in and make the RRA an official sporting regulation.

Breaches would therefore carry a sporting sanction, such as the loss of points, or race bans.

“Yes, it (the letter) was unanimous. Most of the teams have signed it,” said Lotus team boss Eric Boullier.

He would not, however, confirm the identity of the teams that did not sign.

But a report in the Kolner Express newspaper claims “only two teams did not sign: Red Bull and the sister team Toro Rosso”.