With one day remaining in 2026 pre-season testing in Bahrain, teams began pushing for outright performance. The competitive order remains difficult to define, but clear trends are emerging at the front while warning signs appear elsewhere.

There is growing consensus across the paddock that McLaren, Mercedes, Red Bull and Ferrari remain the benchmark quartet. No team wants to claim favorite status — each points elsewhere — yet the top four from last season appear to have retained their edge under the new regulations.

McLaren CEO Zak Brown acknowledged the dynamic: “I think we’ll be in the big four – I don’t think we’re in the front of the big four, but it’s going to be a long season with a lot of development.” Under sweeping rule changes, the development race is expected to shape the championship narrative.

One team that commanded attention was Ferrari. After starting the year with a Spec-A car focused on fundamentals, Ferrari introduced a beam wing (a lower rear wing element mounted above the diffuser to enhance rear airflow extraction) behind the exhaust. The bigger headline came when Lewis Hamilton ran a radical rotating rear wing element designed to flip orientation in straight-line mode to reduce drag.

The Scuderia labeled it a “test” component and removed it for long-run work later in the day, with no confirmation yet on future use. Nonetheless, after flying under the radar in week one, Ferrari now looks among the most impressive outfits — particularly in race starts — and could arrive in Australia as a genuine contender.

Meanwhile, Aston Martin endured another challenging session. Fernando Alonso completed just 68 laps before a power unit issue forced a precautionary stop. “It was important to get some mileage in, but it wasn’t enough,” he admitted, highlighting unfinished run plans and technical work still pending ahead of Melbourne.

In contrast, Mercedes delivered a ruthlessly efficient day. George Russell and Kimi Antonelli combined for 157 trouble-free laps, regaining ground after earlier stoppages. The team focused on test items and setup refinement on the C3 compound before sending Antonelli out on lower fuel in representative evening conditions — where he set the fastest time.

Still, Antonelli remained measured: “While that is positive, the gaps between those at the front are incredibly small — down to hundredths.” The takeaway is clear: margins are razor-thin and the development battle is only beginning.

Thumbnail credits: © Erman Gunes | Dreamstime.com