Formula One has formally rejected the joint bid from Andretti Global and Cadillac to enter a new team in the 2025 or 2026 F1 seasons. However, F1 has indicated the door could be open for an Andretti-Cadillac entry in 2028.

The bid from the American racing outfit founded by former F1 champion Michael Andretti and the luxury automotive brand owned by General Motors was approved on technical grounds by F1’s governing body, FIA, last year. It was expected to rely initially on a Renault engine supply before transitioning to GM power units when the manufacturer joined F1 as an engine supplier in 2028.

Despite this, F1 announced on Wednesday it has rejected the bid in its current form, citing opposition from a majority of the existing 10 teams who felt a new entrant would negatively impact their share of the sport’s revenues. Michael Andretti had previously accused teams of greediness in blocking the entry.

F1 indicated that Andretti-Cadillac has a strong chance of gaining entry in 2028 alongside GM’s power unit plans. This means F1’s grid will stay at 10 teams and 20 drivers for at least the next four seasons.

The decision came after skepticism that Andretti-Cadillac could be fully ready and competitive with a customer engine in 2025 before a major regulation change in 2026. Andretti had insisted the team would be race-ready by 2025 despite the rejection.

The bid had gained momentum after Andretti-Cadillac hired former Renault technical chief Nick Chester and opened a UK facility. However, with most current teams opposed to dilution of F1’s prize money pot in the near term, the series ultimately slammed the brakes on the entry for now.

Image: Cadillac