Williams suffer major F1 test blow as Lewis Hamilton provides aero glimpse – RacingNews365 Review  racingnews365.comWilliams announce they will not take part in Barcelona Shakedown  Formula 1Williams to miss first test because of car delays  BBCWhat we know about major Williams setback with 2026 car  The RaceWilliams to miss first 2026 F1 test with car not ready for five-day shakedown in Barcelona  Sky Sports