Everything we learned on day one of F1's 2026 Monaco GP

Monaco's tight streets and the 2026 rules created a fascinating opening day, with teams scrambling to adapt to the high-downforce demands and unusual energy management. From rear wing 'winglets' to gearbox fears, here are the key takeaways.

Why it matters:

Monaco's unique layout exposes weaknesses that won't appear elsewhere, and the removal of active aero for this weekend forced teams into creative solutions. For some, like Aston Martin, reliability concerns could determine whether they even finish the race.

The details:

• Aston Martin's dangerous downshift: Fernando Alonso warned that a recurrence of the random downshift issue seen in Miami could cause a crash in Monaco. The team also loses gear sync below 40km/h – a problem at Loews Hairpin. Lance Stroll confirmed the car loses sync twice per lap, costing precious time.
• Novel rear wing designs: Most teams introduced winglets to replace the actuators normally used for active aero. Mercedes, McLaren, and Red Bull had complex solutions, while others opted for simpler attachments. Haas and Aston Martin deemed the marginal gain (maybe a few hundredths) not worth pursuing.
• Energy management tightrope: The low-speed layout makes battery charging easy – even too easy. Mercedes-powered teams risk hitting 100% charge before the tunnel straight, then struggling with turbo lag and limited MGU-K deployment. Ferrari's smaller turbos give an advantage here.
• Hamilton's 'Italian Bono': Lewis Hamilton praised new race engineer Carlos Santi, calling him "my Italian Bono" after a mid-season reshuffle improved communication. He also credited his input into new Ferrari suspension for better performance around Monte Carlo.
• Leclerc's faith in Ferrari: Fresh off his contract extension, Charles Leclerc cited belief in Fred Vasseur's project and love for the team as reasons. He hinted at performance-related clauses but said "Ferrari was always the choice."
• Bottas dismisses Cadillac rumors: Valtteri Bottas called speculation about his seat "complete bulls**t," though he acknowledged car-build issues have exaggerated his gap to Sergio Perez. He insists Cadillac supports him 100%.
• Sainz's faith tested: Carlos Sainz admitted Williams's two-second deficit at the start of 2026 was a "big shock" and a test of his faith. He pushed management for answers, but the team's reaction has been positive.

What's next:

Qualifying will reveal whether the winglet gambles pay off, and whether Ferrari's turbo advantage translates into a pole position. For Aston Martin, every lap without a gearbox failure is a small victory. The energy management puzzle could decide who masters the tunnel straight – and who gets left behind on the streets of Monte Carlo.