The 2026 season will mark one of the most significant technical revolutions in recent Formula 1 history, but not everything is set in stone. With the first Barcelona tests just around the corner, the FIA is preparing to closely monitor the behavior of the new cars, ready to intervene with a series of regulatory “levers” if on-track action does not meet expectations.
2026 regulations: what’s still open
At the end of the month, Barcelona will host the first collective test of the 2026 cars. Most of the regulations are already defined, but the FIA has deliberately left some elements flexible. As explained by Nikolas Tombazis, F1 Director of Single-Seater Technical Matters, these tools allow for correction of any issues observed on track.
One evolving aspect concerns overtaking. With the removal of DRS and the introduction of active aerodynamics on every straight, a new overtaking system has been introduced, reminiscent of push-to-pass, designed to keep the racing exciting.
How the new overtaking system works
Nikolas Tombazis explains that the system works on two fronts:
“It’s something that will allow cars less than a second behind the car in front to a) recover more energy during the lap, about half a megajoule extra, and b) make better use of that energy… So they have a) more energy and b) more power when one second behind, equivalent to DRS.”
In technical terms, ERS output is tied to a reduction curve: without the overtaking mode, it drops to zero at 345 km/h; with the mode active, it remains flat longer and drops sharply only at 355 km/h. Essentially, chasing cars benefit from more electric power at higher speeds.
To compensate, up to 0.5 MJ additional energy can be harvested per lap, as specified in article C5.2.10 iii.
Key details remain undecided, such as the length of activation zones. The FIA wants to avoid both overly easy overtakes and stagnant races. Nikolas Tombazis emphasizes:
“We don’t want drivers simply overtaking without fighting… But we also don’t want it to be impossible… We have room to adjust in both directions.”
Energy management and potential surprise overtakes
Beyond the overtaking system, energy management will play a central role in 2026, potentially creating speed differences between cars in unexpected parts of the track.
Some team principals have speculated about overtakes in “unusual” zones, but Nikolas Tombazis urges caution:
“Differences in energy management can create situations where a car may not be able to defend its position… But I think once people learn how to use it, they will be able to ensure they’re not an easy target on the straights.”
The FIA will carefully analyze test data to verify if simulations match reality.
Adjustable parameters and political risks
Even after the tests, the FIA can intervene on specific parameters for each circuit, such as maximum power or recoverable energy, to avoid abnormal car behavior. Nikolas Tombazis explains:
“There will be some circuit-specific parameters we can adjust… We don’t want cars lifting off in the middle of a straight.”
The first week of testing will be crucial to determine whether further simplification and reduced reliance on energy management is needed. But every change carries potential political risks: teams with more competitive power units may resist adjustments that rebalance performance.
Nikolas Tombazis acknowledges:
“Different PU manufacturers may not be on the same page… We at the FIA care about the health of the sport… but they also want to win races, which complicates things a bit.”
The 2026 regulations aim to revolutionize Formula 1, but the FIA has chosen a dynamic approach: observe, measure, and intervene if necessary. The Barcelona tests will be the first real test to see if the new era delivers closer racing, credible overtakes, and sustainable technical balance. The regulatory “levers” are ready; now it’s up to the track to speak.
As the FIA prepares to keep its hand on the regulatory dial, the upcoming Barcelona tests represent a crucial balance between engineering freedom and the quality of the show. Nikolas Tombazis’ emphasis on “room to maneuver” suggests that the 2026 rulebook is a living document, designed to evolve as teams unlock the secrets of active aero and hybrid power. While the political battle between engine manufacturers will likely intensify if the FIA pulls these levers, the ultimate goal remains a sport where technical innovation doesn’t come at the expense of wheel-to-wheel combat. The next few weeks of data collection will determine whether the new era hits the ground running or requires a mid-season course correction to keep the fans on the edge of their seats.
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