F1 2026 mid-season grades: Mercedes' early dominance evaporates as reliability woes strike

After four years in the doldrums with a tough to tame ground-effect car, Toto Wolff's Mercedes empire was desperate to strike back. The combined efforts of its chassis team in Brackley and its power unit division in Brixworth came up with a rocket ship, but enduring reliability problems are taking its grade down to A-. The good Mercedes came out of winter test as the odds-on favourite for ...Keep reading