Charles Leclerc set the fastest time during six days of pre-season testing in Bahrain, highlighting Ferrari and Mercedes as frontrunners ahead of the 2026 Formula 1 season opener in Australia. The tests revealed a tight battle among the top four teams, while Aston Martin struggled with reliability issues. Midfield teams like Haas and Alpine showed promise in the new regulations era.
The 2026 Formula 1 pre-season testing concluded with two three-day sessions at the Bahrain International Circuit, following a shakedown in Barcelona. Over six days, teams accumulated significant mileage to adapt to the overhauled chassis and power unit regulations, which emphasize a 50-50 split between internal combustion and electrical power, alongside increased energy management demands.
Ferrari topped the timesheets with Charles Leclerc's 1m31.992s lap on softer C4 tyres, nine tenths ahead of the field, though fuel loads and sandbagging caveats apply. Mercedes, with Kimi Antonelli's 1m32.803s, demonstrated strong long-run pace despite reliability hiccups, including a pneumatic leak requiring a power unit change. McLaren completed the most laps at 817, with Oscar Piastri noting the team is part of the top four but behind Ferrari and Mercedes. Red Bull's in-house power unit impressed with reliability, logging 672 laps, as team principal Laurent Mekies praised the progress from a former field site.
In the midfield, Haas impressed with 794 laps and consistent performance, while Alpine showed improvement post-2025 struggles. Williams, absent from Barcelona, racked up 790 laps but faces challenges with excess weight estimated at 25-40kg. Racing Bulls and Audi also gathered useful data, with the latter improving late in testing.
Aston Martin endured a disastrous test, completing only 334 laps due to Honda power unit failures, including battery issues that limited Lance Stroll to six laps on the final day. Pedro de la Rosa admitted they are not where they wanted to be, with development delays exacerbating problems.
Off-track, debates over engine compression ratios pitted Mercedes against rivals, but a FIA compromise measures at ambient and 130C temperatures. New start procedures addressed turbo spool concerns, with Ferrari engines showing quick getaways. As teams head to Melbourne on March 6-8, the competitive order remains fluid amid rapid development.
