What happened: Fernando Alonso's Aston Martin spun through a full 360 at Turn 1 during Mexico City Grand Prix running. He told the team over the radio that he had no power and the gears had not worked.

Why it matters: The problem lands on a weekend where Aston Martin is already working back from the pace deficit seen in FP1. Alonso is locked in at Aston Martin for 2027, and lost track time makes it harder to sort out car issues at Autodromo Hermanos Rodriguez.

What to watch: Whether Aston Martin traces the power and gear problem before qualifying.