The FIA has updated the 2026 F1 engine rules, changing how compression ratios are measured to prevent loopholes.

Formula 1 bosses are moving towards a rule change that would close a loophole rivals believe Mercedes have exploited in the sport's new engine rules.

Over the years developers in the rules-management business have tried to establish a set of benchmarks that will allow the users to test various systems for speed and efficiency on different, complex ...