What happened: Mercedes leadership has openly questioned how Ferrari keeps adding upgrades to its SF-26 at a relentless rate during the budget-cap era. Since Formula 1's enforced April break following the cancellation of the Bahrain and Saudi Arabian Grands Prix, Ferrari has brought new parts to nearly every race weekend. The pace of development has become a paddock talking point given the tight spending controls now in place.

Why it matters: Under the budget cap, development is one of many cost areas subject to strict limits, so a sustained stream of upgrades invites scrutiny over how rivals allocate their spend. The questions matter in a tight title fight where in-season car development can decide the championship balance between the leading teams.

What to watch: Watch whether Ferrari's upgrade cadence continues at upcoming rounds and whether Mercedes presses the matter through F1's cost-cap monitoring.