Ferrari Concedes 2026 Engine Power Deficit to Mercedes After Monza Struggles
Ferrari Formula 1 team principal Fred Vasseur has acknowledged that the Scuderia was never realistically positioned to match Mercedes on engine power for the 2026 season. The admission comes after a difficult Italian Grand Prix weekend at Monza, where the team’s power unit deficit was laid bare on the calendar’s most power-sensitive circuit.
ADUO System Fails to Close Gap
Since F1 introduced new technical regulations this year, Mercedes has fielded the most puissant power unit. The Additional Development and Upgrades Opportunities system (ADUO) was designed to help manufacturers lagging in performance catch up. Assessments based on the internal combustion engine actually identified Red Bull as having the most powerful unit. Consequently, Mercedes received one upgrade token for 2026 and 2027, while Ferrari, Audi, and Honda were each granted two.
Despite this advantage, Ferrari’s ADUO upgrades — debuting in Austria and at Monza — have not bridged the gap. Mercedes has yet to introduce its sole update for the year, expected in October. At Monza, Charles Leclerc and Lewis Hamilton qualified fourth and fifth respectively. Leclerc crashed out after contact with his teammate at the start. In qualifying trim, the Ferrari power unit was 5.6 km/h slower on top speed compared to the benchmark, a figure mirrored by Oliver Bearman in the Haas.
“At least I was right on something,”
Vasseur quipped after the race, referencing his prior insistence that the ADUO upgrade would not be a game-changer. When asked if the upgrade met expectations and whether energy deployment contributed to the deficit, Vasseur was candid.
“I don’t want to give details, but when you have a lack of pure power, then you start to play with deployment to try to compensate in one straight line. But if you deploy more somewhere, for sure you will deploy less somewhere else and then you are going in the wrong spiral to try to play with this when you are fighting.
Honestly, it’s not about deployment. I think deployment was okay-ish, that even McLaren, they were playing a little bit Friday and Saturday morning. At the end, we are missing pure power.”
Quantifying the Power Deficit
Vasseur used a theoretical framework to explain how the deficit scales across different circuit layouts.
“The reality of this is that if you are missing X in Zandvoort, you are two or three tenths [down]. If you are missing X minus – I’m using letters because you will try to extrapolate – if you are missing a bit less than X in Monza, the delta with the Merc is two times bigger.”
Cost Cap and Lead Times Constrain Development
Pressed on whether specific design choices caused the power shortfall, Vasseur highlighted the structural challenges of power unit development under the current cost cap.
“On the engine, the process is mega long because the lead time of the parts is long and the cost cap is not easy. You have to produce the engine for the season. You are already a bit like this and if you want to start to do the development, you have to produce a new batch of engines, and it’s tricky.
We were not expecting to recover [with] ADUO 1 or ADUO 2. We are doing small steps, but what you have to keep in mind is that if you make a small step on the engine, even if you make a couple of horsepower, it’s a good step on the grid.”
The competitiveness of the midfield underscores this point. In Monza qualifying, just 0.127 seconds separated third-placed Oscar Piastri from seventh-placed Kimi Antonelli.
Focus Shifts to 2025 Power Unit
“That means that now we will have a new engine next year. For sure, the target is to catch up, to catch up as soon as possible, but I was not expecting that in two months we will recover the delta with Mercedes.”
Championship Standings Widen
The Monza result compounded Ferrari’s championship woes. The Scuderia’s deficit to Mercedes in the Constructors’ Championship has ballooned from 87 to 122 points. In the Drivers’ standings, Hamilton now trails by 76 points after finishing only sixth at his future team’s home race.
