Frederic Vasseur has returned to the spotlight to address the ongoing controversy over the compression ratio for the new 2026 Formula 1 engines, demanding clear guidelines from the outset. The new season is kicking off under a cloud of uncertainty, after the FIA announced it will only conduct hot checks on engines starting from June 1. This means that from the Australian Grand Prix through to the Canadian Grand Prix, engine inspections will be carried out solely at cold temperatures.
This decision has sparked significant debate, with some questioning whether Mercedes might run engines outside of compliance during the early races of the season. Amid these doubts, Fred Vasseur is trying to clarify the situation in an exclusive interview with Roberto Chincero for Motorsport.com Italia.
Vasseur calls for clarity on engine rules
When asked about how the FIA has managed the issue, Ferrari’s team principal explained: “When you introduce a completely new set of regulations, like in 2026, every team faces total change. Engine, chassis, aerodynamics, tyres, batteries — I would say everything, including how the rules themselves are structured. We anticipated that at the start of this season there would be grey areas.”
Fred Vasseur emphasized the challenge of these grey zones: “A grey area is ultimately just a space where different interpretations coexist, each seemingly valid. This is exactly what happened with the compression ratio. The main problem is that when a grey area involves the power unit, the timelines for reacting are very long.” – the French manager pointed out.
He also highlighted the impact of the budget cap: “In addition, engines are produced under a strict budget cap, which complicates matters even further. There’s a precise plan — we know exactly how many power units we will manufacture during the season. Component orders are placed well in advance because delivery times are very long.”
Fred Vasseur concluded with a call to the FIA for transparency: “For these reasons, the compression ratio issue has become a saga. It’s not just about performance — it affects the planning for the entire season. Moreover, we will soon begin work on the 2027 power units, so it is essential to have a clear scenario before starting.”
Fred Vasseur’s firm stance on engine legality highlights the immense pressure teams face when navigating a total regulatory reset. While the SF-26 has shown promising pace in testing, the shadow of the “compression ratio saga” suggests that the true hierarchy of the 2026 grid might not be settled until the FIA’s hot checks begin in June. If Maranello’s concerns are proven right, the first third of the championship could be remembered as a period of tactical ambiguity, making immediate clarity from the FIA the most sought-after update in the Melbourne paddock. For a team like Ferrari, a clear set of rules is the only way to ensure their technical innovations translate into a fair fight for the world title.
