Carlos Sainz’s Williams clears thorough FIA active aerodynamics inspection in Miami. FIA inspects Carlos Sainz’s Williams after Miami GP technical checks.

What the FIA technical delegates inspected

As is customary among the first official FIA documents released at the start of a new Formula 1 race weekend, there is also the report detailing the in-depth technical inspections carried out on a randomly selected car.

In Miami, the FIA’s attention focused on Carlos Sainz’s Williams FW48, after the Spanish driver finished ninth, just ahead of teammate Alexander Albon.

The FIA technical delegates carried out a detailed inspection of the front wing’s active aerodynamic system, along with the operation of all sensors responsible for transmitting real-time data to the FIA through the standard electronic control unit.

All components subjected to inspection were found to be fully compliant with both the Formula 1 technical and sporting regulations.

The FIA’s decision to pull Carlos Sainz’s Williams into the post-race inspection bay highlights the governing body’s relentless vigilance over 2026’s complex active aerodynamic systems. With teams constantly pushing the boundaries of aero elasticity and sensor calibration to find straight-line efficiency, clearing these deep technical checks without a single compliance note is a massive victory for the engineering office at Grove. Having validation that their complex front wing assembly operates perfectly within legal limits gives James Vowles and his design crew the green light to continue their aggressive weight-reduction and upgrade program for Canada and Monaco. As the grid prepares to tackle the high-speed braking zones of Montreal, keeping their active aero data clean and legally bulletproof remains a vital foundation for Williams’ midfield recovery.