Cynical minds within F1 – and there are plenty of them – will draw far-reaching conclusions from the FIA’s court of appeal verdict upholding the legality of the ‘double diffusers’ featured on the Brawn, Toyota and Williams contenders.

Many feel it has inflicted a body blow to the supposed solidarity among the Formula One Team’s Association at a time when the F1 entrants have been displaying an unusual degree of solidarity during negotiations with Bernie Ecclestone over how much cash they can expect to earn from a new Concorde agreement in 2012.

The intensity of the technical debate at the court of appeal was certainly unusual in terms of outspoken comment.

When Ferrari’s lawyer Nigel Tozzi QC opened yesterday’s proceedings with an electrifying attack on Ross Brawn, the team principal of the former Honda F1 team, it was clear that this was going to be an unusually feisty technical debate.