It was almost a month ago that Romain Grosjean was disqualified from the Italian Grand Prix, after the floor of his Haas challenger was deemed to not be in compliance with the rules. The American squad were quick to challenge that decision, believing the Frenchman's P6 should have stood, and their appeal hearing has now been set for November 1…

Grosjean had enjoyed what looked like a memorable afternoon for Haas in Monza, finishing in an impressive sixth to help his squad leapfrog Renault into fourth in the constructors’ championship – but their French rivals quickly lodged a protest after the race.

Renault questioned the legality of the Haas, and it was eventually decided by the stewards that the team had breached article 3.7.1 d of the Technical Regulations, which focuses on the radius of the leading corners of the floor’s reference plane.

It has now been confirmed that the hearing will take place on November 1 at the FIA Court of Appeal in Paris - and although Haas immediately protested against the decision, Team Principal Guenther Steiner is unsure if their appeal will be successful.

“It’s 50/50, it could go both ways,” said Steiner. “I would never say I am confident of winning it because you never know what is happening.

“We have no control on the decision, you can do the best you can with your lawyers and your technical people to explain what actually happened, the whole process and why we ended up where we were and why they got it wrong. But then again, I’m not on the Court of Appeal. I cannot decide, so I would say 50/50 so it could go both ways.

“You all saw what happened and all read more carefully than me the sentence and why it was done and checked the technical articles. What we did was appeal and then followed up on that appeal, because first you do an intent of appeal and then you do an appeal that you have to prepare for.

“That’s at the beginning of November and we are getting prepared for that based on what we think was not correct in disqualifying us. I don’t want to go into technicalities because it will have less effect in the Court of Appeal if play it out here.”

In July, governing body the FIA issued a Technical Directive clarifying the regulation surrounding floor design and stipulated that teams were required to bring their cars into conformity before the Italian Grand Prix.