FIA Expands Straight-Line Mode at Spa as Alonso Sounds Warning

Formula 1's return to Spa-Francorchamps this weekend will feature five straight-line mode zones. The FIA confirmed drivers can activate active aero on the downhill run from La Source toward Eau Rouge, though they must close the movable wings before tackling Raidillon, preserving high downforce for one of the calendar's most fearsome corners.

Why it matters:

More active aero zones promise greater overtaking potential, but they also intensify the strategic headache of Formula 1's new era. With Overtake Mode on the pit straight and SM zones spread across the layout, the real battle may be fought through energy management rather than rear-wing angles.

The details:

• Five SM zones: The start-finish straight, La Source to Eau Rouge, Kemmel Straight, the run from Stavelot, and the approach to Bus Stop.
• Wing restriction: Drivers must deactivate SM before Raidillon, preserving high downforce through the fearsome uphill sweep.
• Overtake Mode: The electrical power boost, replacing DRS, is available on the pit straight.
• Energy dilemma: Fernando Alonso warned that deploying from Turn 1 to Turn 5 would drain reserves, leaving nothing for the blast from Stavelot to Bus Stop.
• Power deficit: Without electrical deployment, Alonso noted 2026 cars produce less power than their predecessors and fall below F2 levels, leaving drivers exposed through Sector 2.

What's next:

Spa will serve as a critical test for the 2026 regulations. Teams must solve where to commit their limited electrical boost, because the fastest lap might not belong to the driver with the bravest line through Eau Rouge, but to the one who still has energy left when it counts.