F1 considering return to roaring V10 engines

F1 ponders return of V10 engines with sustainable fuel, says FIA chief.

Formula 1 could be steering towards a louder and more electrifying era as the sport's governing body, the FIA, has sparked discussions about the potential return of the roaring V10 engines, this time powered by fully sustainable fuels.

Since 2014, Grand Prix cars have been equipped with 1.6-liter V6 turbo hybrid engines. These engines, marvels of modern engineering, have been both expensive and significantly quieter than the iconic, high-revving V10s that thrilled fans until their final appearance in 2006. New regulations set to take effect from 2026 through 2030 will continue this trend.

The prospect of revisiting the V10 era was revived by Mohammed Ben Sulayem, president of the FIA, who reflected on F1's 10-team launch in London in an Instagram post. The London event drew a crowd of over 15,000, who notably booed at the mention of the FIA during the proceedings.

"This week's F1 launch in London has triggered a lot of positive discussion on the future of the sport," wrote Ben Sulayem. "While we look forward to the introduction of the 2026 regulations on chassis and power unit, we must also lead the way on future technological motorsport trends.

"We should consider a range of directions including the roaring sound of the V10 running on sustainable fuel. Whichever direction is chosen, we must support the teams and manufacturers in ensuring cost control on R&D expenditure."

An FIA spokesperson confirmed that discussions with stakeholders regarding the sport's technical direction post-2030 are ongoing. A working group is likely to be established to explore various possibilities, including the potential for V10 powertrains running on sustainable fuel.

"A V10 powertrain running on sustainable fuel would be part of those considerations, which would be tied to environmental and cost-containment measures," the spokesperson added. "While we are fully focused on the introduction of the 2026 regulations, and the prospect of the competitive racing they will bring, we also need to keep an eye on the future."

Many car manufacturers may favor simpler, more cost-effective engines, even if reverting to V10s might seem like a technological step back. Brands such as Alpine, owned by Renault, are progressing towards an all-electric future yet recognize the marketing potential of F1 and the importance of maintaining high entertainment values.

F1 chief executive Stefano Domenicali indicated last year that sustainable fuel could simplify and reduce the cost of engine development. "If sustainable fuel is doing the right job to be zero emission, maybe we don't need anymore to be so complicated or so expensive in terms of engine development," Domenicali said. "So we may think to go back to engines that are much lighter and maybe with a good sound."

As the discussions unfold, F1 enthusiasts can look forward to the possibility of once again enjoying the exhilarating roar of V10 engines, paired with the promise of sustainability and cost-efficiency.

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