F1 open to radical overhaul as new manufacturers return

F1 chief Stefano Domenicali says the championship is ready for a power‑unit overhaul after Audi, Ford, GM and Honda have confirmed returns, while 2026 fuel will be 100 % sustainable, opening the door to alternative engine concepts.

Why it matters:

• New manufacturers bring capital, technology and global fan interest, bolstering F1’s commercial health.
• Sustainable‑fuel rules align the sport with the automotive industry’s decarbonisation push, making any engine shift relevant beyond racing.

The details:

• The 2022 50‑50 hybrid formula attracted Audi (works entry 2026) and a Ford‑Red Bull Powertrains partnership; GM plans a Cadillac unit for 2029 and Honda returns with Aston Martin in 2026.
• 2026 regulations require 100 % sustainable fuel, which could allow non‑hybrid architectures such as V8 or V10 engines on bio‑derived blends.
• Domenicali notes the “ecosystem” shift – manufacturers view F1 as a renewable‑fuel showcase, but rule changes must still prioritize fans and the driver‑car battle.

What's next:

The FIA will launch a formal review of post‑2026 power units in 2025, with proposals due for discussion by the end of the 2026 season. Teams must decide whether to pursue a radical new architecture or continue refining the current hybrid while keeping fan appeal central. Ultimately, the direction chosen will shape the sport’s identity for the next decade.