Proposed 2027 F1 Engine Changes Face Uncertain Future

Talks continue over proposed changes to the 2026 engine regulations, but a split among manufacturers threatens to delay the overhaul until 2028. The plan would alter the current 50/50 power split to a 60/40 bias toward the internal combustion engine, reducing extreme energy management demands and late-lap drop-offs. However, with only Mercedes and Red Bull backing a 2027 introduction, the proposal faces an uncertain future in Montreal this weekend.

Why it matters:

The 2026 regulations have been criticized for making cars overly dependent on battery management, leading to unnatural driving characteristics and power fade. A shift toward more ICE reliance could improve the racing product and retain top drivers like Max Verstappen, who called it "the minimum I was hoping for." But failing to secure unanimous manufacturer support risks prolonging a power unit formula that many fear will dilute F1's spectacle.

The details:

• The proposed change would increase ICE output by 50kW and reduce battery power by the same amount, targeting a 60/40 split.
• Under F1's governance, four of the six manufacturers must approve major engine regulation changes.
• Mercedes and Red Bull are pushing for a 2027 implementation, while the other manufacturers prefer waiting until 2028.
• Audi is particularly concerned about the financial hit—reportedly over $10 million in development costs—after investing heavily under the existing rules.
• Ferrari is wary of reopening the regulations, fearing it could undermine the ADUO (Additional Development and Upgrade Opportunities) system, which the Scuderia views as crucial to closing the gap to Mercedes.
• Drivers have broadly supported the move. Verstappen said in Canada: "It will improve the product and that makes me happier. That's definitely what I think the sport needs."

What's next:

Discussions in Montreal will test whether a consensus can be reached. A 2027 change requires support from four manufacturers; if that fails, the tweaks may be pushed to 2028 or abandoned entirely. The outcome will shape not only the 2026 power unit landscape but also the confidence of drivers and teams in the sport's direction.