The Formula 1 power unit built at Mercedes’ Brixworth factory is already being praised in the paddock as teams prepare for the new regulatory cycle in 2026.
The Canadian former Formula 1 World Champion Jacques Villeneuve spoke about the origins of the rumors surrounding Mercedes’ potential advantage and shared his thoughts on how things will unfold in the upcoming era.
Formula 1 is set to undergo its most radical transformation in history in 2026, with changes coming simultaneously to both chassis and power units. The new regulations will eliminate the MGU-H component from the hybrid system and increase the electric power’s contribution relative to the internal combustion engine. Additionally, the fuel will be 100% synthetic, marking a significant shift in technology and sustainability.
Looking back to 2014, Mercedes arrived on the grid with a power unit unmatched by its rivals at the time, namely Ferrari and Renault. The customers of the German manufacturer — McLaren, Williams, and Force India — benefited from this technical superiority, often featuring prominently during race weekends. In particular, Williams enjoyed a resurgence after several disappointing seasons.
Honda joined the power unit battle in 2015 but had to wait until 2019 to celebrate their first victory with Max Verstappen at the Austrian Grand Prix.
According to Jacques Villeneuve, however, the 2026 scenario will not be a repeat of 2014: “In 2014, Mercedes had a five-year advantage over their competitors and even had more powerful engines ready in the garage for when others started to catch up to their power unit performance,” said the 1997 World Champion in an interview with Vision4Sport. “Because that’s what happened in 2014, now everyone thinks it will end the same way in 2026, but I don’t believe that this time the other manufacturers will be caught off guard. Everyone now starts from a solid foundation regarding how these power units work, so why would Mercedes be able to make another leap forward? The technology is the same; it’s just implemented differently. The rumors about Mercedes’ engine superiority are just that — rumors. No one really knows what’s going on inside the different design departments.”
He added: “In any case, this power unit regulation doesn’t seem likely to last long, and we should hope that no engine is clearly superior to the others, because that advantage tends to last a long time and is not quickly recoverable, unlike chassis or aerodynamic solutions.”
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