FIA Allows Mercedes and Red Bull Engine 'Trick' as W17 Breaks Cover

The FIA has decided against banning the controversial engine "trick" utilized by Mercedes and Red Bull, effectively validating their design approach for the 2026 regulations. This ruling comes as Mercedes revealed the first images of its W17 challenger, which recently completed a successful shakedown at Silverstone.

Why it matters:

With Ferrari, Audi, and Honda reportedly pushing for a ban on the specific engine architecture, the FIA's decision grants Mercedes and Red Bull a significant regulatory advantage. This technical edge could define the competitive hierarchy of the new era, while the W17's early track appearance suggests Mercedes is ahead in integrating this potent power unit into a reliable chassis package.

The details:

• Regulatory Stance: Sources close to the matter confirmed to GPblog that the FIA will not intervene against the engine concept, leaving rival manufacturers to adapt their own designs to match this innovation.
• Manufacturer Reaction: The lack of intervention is a setback for Ferrari, Audi, and Honda, who viewed the design as an exploitation of the rules rather than a purely engineering solution.
• W17 Debut: Mercedes has pulled the covers off the W17, a car rumored to feature the most powerful internal combustion engine on the grid.
• Silverstone Shakedown: Trackside Engineering Director Andrew Shovlin described the initial run at Silverstone as "sensible," prioritizing safety and reliability checks over outright performance.
• Driver Feedback: The team successfully completed its planned mileage, giving both George Russell and rookie Kimi Antonelli their first taste of the 2026 car.
• Team Effort: Shovlin credited the seamless start to the collaboration between the chassis team at Brackley and the power unit division at Brixworth.

What's next:

The Mercedes squad now heads to Barcelona for the next phase of testing.

• The focus will shift from basic reliability to understanding the W17's handling characteristics and performance window.
• As rivals scramble to address the engine ruling, Mercedes aims to build an early lead in the development race before the season opener.