Andretti Cadillac Racing leader Michael Andretti has revealed it will test a car built to the current F1 specifications in a wind tunnel next week.
The American outfit is aiming to join the F1 grid having passed the first two phases of the FIA's entry process, triggered by an Expression of Interest opening presented by President Mohammed Ben Sulayem earlier this year.
But the final hurdle to overcome comes in the form of commercial discussions with Formula One Management, with strong opposition given to the Andretti entry from the incumbent teams ever since a potential entry was touted last year.
Speaking to Sky Sports F1 at the United States Grand Prix at the Circuit of the Americas, Andretti said: "We are very, very excited.
"Thank you to the FIA and the President of the FIA for putting the Expression of Interest out there.
"It was very vigorous, it was a very tough thing to go through for our team and I am proud to say we came out on top in every category.
"So I think it definitely shows we have the right to be here on the grid.
"We are really excited by the fan support, the fan support has been overwhelming. I want to thank everybody out there for all your support because that means a lot.
"We are very excited about the future, we think we have something to offer to Formula 1 fans."
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Andretti 'flat out' in F1 preparations
The entry conditions state a new team could enter in either 2025 or 2026, the latter of which would be in line with a new set of power unit regulations in F1.
Asked where the operation was currently pointed towards, Andretti explained: "We are still shooting for 2025.
"Our car is actually going to be in a wind tunnel next week, so we have a car already built up in '23 spec.
"So we are flat out, we're building a team so, at the moment it is '25, it could be '26 but we will see."