What happened: A Mercedes insider says the team is "livid" after confirmation that Monaco GP pit-lane speed checks were not accurate. The stewards acknowledged the inaccuracy but noted there is no mechanism to address penalties already taken during the race.

Why it matters: The frustration follows Alpine winning a right of review that rescinded its driver's penalty and restored a podium finish. Mercedes argues it faced the same flawed measurements without a comparable path to redress, deepening a paddock dispute that has already drawn appeal filings from rivals.

What to watch: Watch whether Mercedes lodges its own protest or right-of-review request, and how the pending appeals against the Monaco penalty reversal are resolved by the stewards.