Toto Wolff has confirmed that Mercedes will not introduce its next major W17 upgrades until the Malaysian round in October, admitting that the team is under significant pressure from Formula 1’s budget cap. With McLaren now delivering consecutive victories and Ferrari also closing the performance gap, Mercedes faces a difficult September without an immediate technical response.
The Dutch Grand Prix delivered Mercedes’ second consecutive defeat. McLaren appears to have rediscovered the level of competitiveness it showed across 2024 and 2025, leaving the Mercedes works team in the unusual position of chasing a customer that also uses its power units. McLaren has itself credited Mercedes HPP’s power-unit work as part of its major 2026 performance improvement.
Mercedes faces difficult wait for next W17 upgrades
At Zandvoort, Lando Norris won with authority after recovering the position he had lost to a precise Kimi Antonelli at the second start. Mercedes still secured second and third places, an excellent result from a championship perspective, but the outcome again showed that the early-season competitive hierarchy has changed.
The Silver Arrows no longer possess the clear advantage they enjoyed during the opening phase of 2026, with Mercedes now having to maximise results while its rivals gain ground.
Team principal Toto Wolff has warned that September could therefore be difficult because the next substantial developments are not imminent.
Toto Wolff says budget cap limits Mercedes development rate
“We’re really up against it when it comes to the budget cap,” Toto Wolff admitted to Sky. “We can’t bring major upgrades every two or three races. The new parts will arrive in Malaysia.”
The comments underline one of the central challenges facing Mercedes as it attempts to respond to McLaren’s recent progress. Development is not simply a question of identifying performance gains: expenditure must also remain within Formula 1’s financial regulations, limiting how frequently large upgrade packages can be designed, manufactured and introduced.
Mercedes therefore has to navigate the upcoming races with its current package before the next significant W17 development step arrives in Malaysia. The team has already been working on a revised development programme, while Kimi Antonelli continues to extract valuable results despite the car no longer being the outright benchmark.
His second place at Zandvoort was another example, with Kimi Antonelli salvaging a strong result from a difficult Dutch GP weekend.
Mercedes wary of both McLaren and Ferrari
Asked which rival concerns Mercedes more between McLaren and Ferrari, Toto Wolff offered a concise answer.
“Both.”
That response reflects how much the competitive picture has tightened. Mercedes remains firmly in the championship fight after another double podium at Zandvoort, but McLaren’s recent resurgence and Ferrari’s improvement mean the team can no longer rely on the performance advantage it enjoyed earlier in the year.
Until the new W17 package arrives in Malaysia, Mercedes’ priority will be to limit the damage, maximise every available result and remain in the strongest possible championship position for when its next major development step finally reaches the track.
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