Perhaps most significantly for the sport’s future, the 2025 season has seen F2 and F3 cars successfully transition to 100% advanced sustainable fuel, developed by Aramco.
This move builds on the 2024 season’s use of 55% sustainable fuel and serves as a crucial testing ground for Formula 1’s own transition, which is due in 2026.
The timing is deliberate. Next year’s introduction of new hybrid engines in F1 will coincide with the sport’s adoption of these advanced sustainable fuels, representing the most significant technical regulation change in years.
But the implications stretch way beyond the circuit.
The sustainable fuel being developed for Formula 1 is designed to be a ‘drop-in’ replacement, meaning it can also be used in conventional road cars without any modifications necessary.
It could prove transformative for the broader automotive industry, offering a sustainable alternative that requires no infrastructure overhaul or consumer behaviour change.
It’s also further proof that elite level sport is a prolific testing ground for innovations that change life on Earth.