Ferrari are under pressure on and off the track. On track the F2004-M has not proved up to the job of supporting Schumache’s bid for an eighth title, and off track the manufacturers are blasting Ferrari for refusing to sign up to the testing ban agrred by the other nine teams in Brazil. Of those nine teams only Sauber, with their dependence upon Ferrari for their engines, are quiet on this issue at the moment. The manufacturers wrote a formal open letter to Ferrari (“Rivals slam Ferrari in letter” – F1Racing.net) accusing them of causing a cost increase by conducting testing concurrently with Grand Prix weekends.