The Haas Formula 1 team has confirmed it will appeal a stewards' decision late Sunday to exclude Romain Grosjean from the result of the Italian Grand Prix.
The French driver finished sixth on the road for the Ferrari-powered American team, but rivals Renault lodged a protest against the legality of his car, which led to the stewards' decision.
'Stewards' ruling affected the result'
The car was found to have an irregular, non-compliant floor design, a late and dramatic twist at the end of a day of near-breathless action on and off the circuit.
Haas team chief Guenther Steiner said: "We do not agree with the stewards' decision to penalise our race team and we feel strongly that our sixth-place finish in the Italian Grand Prix should stand. We are appealing the stewards' decision."
The stewards' ruling affected the result and gave the struggling Williams team a double points finish as Russian rookie Sergey Sirotkin was elevated into the points.
The Haas team has until Thursday to gather information and confirm its intention to make an official appeal.