The 2026 engine regulation headache
At the heart of Formula 1's changing face, one question is on everyone's mind: will the engines of the future be synonymous with advanced hybrid technology or a return to basics, guided by nostalgia for the V10? The future of the discipline is just around the corner.

Formula 1, caught between multiple demands, is preparing for a significant transformation in its engine philosophy. While the 2026 regulations highlight hybrid power units and sustainable fuels, increasingly insistent voices are calling for a return to combustion engines — and more specifically, the legendary V10s.
Doubts continue to grow around hybrid engines due to their technological complexity and exorbitant development costs, which, according to some, could deter new manufacturers from entering the sport. Moreover, the power distribution between combustion and electric elements is seen as potentially detrimental to the spectacle, with less consistent performance over a lap and a sound experience that fans find far less thrilling.
In this context, nostalgia for the V10s is resurging. These engines, synonymous with an era of raw power and mechanical roar dominating the circuits, could offer more than just sentimental value. Their simpler systems, which imply lower development costs, could attract new engine manufacturers. Additionally, their ability to run on synthetic fuels opens the door to reducing the sport’s carbon footprint.
The idea of a V10 comeback has even been endorsed by four-time world champion Sebastian Vettel, who drove a demonstration run at Silverstone in 2022 in a 1992 Williams FW14B powered by sustainable fuel. A nod to the past that reignited the debate about whether F1 could be environmentally responsible without sacrificing the soul of the competition.
Faced with these demands, the FIA finds itself at a crossroads. Two scenarios are now on the table: either continue developing hybrid engines for 2026, possibly redesigning them to boost efficiency and entertainment value, or make a clean break and consider a return to V10 or V8 engines from 2028 or 2029. This latter, more radical option would require broad support from championship stakeholders, especially the manufacturers.
The main obstacle would be Audi’s commitment, which hinges on promoting hybrid technology. This direction could put the brand’s F1 involvement at risk, potentially depriving the championship of a major manufacturer. A compromise will therefore be essential to reconcile Audi’s environmental goals with a portion of the public’s desire for louder, more visceral racing cars.
The final decision promises to be complex, as the stakes are high. The future of Formula 1 engines will be determined in the coming months, shaping the sport’s identity for years to come. The roar of V10s, more than just a nostalgic memory, might just represent the promise of a new chapter for Formula 1.