Thermal degradation and tyre strategy: how Ferrari looks to challenge for podium in F1 Spain GP. McLaren locks out the front row in Barcelona with dominant pace, while Ferrari bets on strategy and tire management.

McLaren flies with rear cooling and ultra-low ride height
An all-McLaren front row—finally, one might say—since on many (too many) occasions, Piastri and Norris hadn’t managed to secure both P1 and P2 on the grid despite having a car capable of doing so. In Barcelona, over a single lap, it wasn’t even close: the MCL39 showed a clear advantage, combining downforce, efficiency, and stability. While the margin over the first pursuer was just three tenths, the front row never really seemed within reach for anyone else. The papaya cars remain the only ones capable of running with such minimal ride height, even triggering porpoising—as highlighted by a revealing team radio to Lando Norris during FP3. The car’s high-energy aerodynamic setup isn’t affected by vertical oscillations, and its suspension system can evidently handle the massive downforce with the right progression of stiffness, without excessive floor wear. In Barcelona, this also meant they didn’t even need the highest-downforce rear wing, which helped them find the ideal longitudinal balance to protect the front and maintain sharp cornering, while still ensuring strong top speeds.

This is also made possible by the brake duct cooling system, which appears to manage rear tyre temperatures well—allowing engineers to shift the balance forward to protect the front axle (particularly the front-left tyre). All of this has rendered the recent technical directive on front wing flex nearly irrelevant—any handling impacts are clearly under control.

Looking at the data, Oscar Piastri builds his advantage right from Turn 1—not due to tyre prep, but because he can push immediately without risking worn tyres by the end of the lap. His advantage grows quickly up to the exit of Turn 5, when other cars begin to reach a grip level similar to the McLaren. Comparing with Norris, Piastri gains most between Turn 5 and Turn 8—this gap then secures him pole position. The data also clearly shows that the Woking car has the most aerodynamic downforce, though Ferrari’s figures—discussed later—also show strong levels of downforce.

Verstappen and Russell post identical times, but with different setups and race outlooks
Max Verstappen and George Russell ended qualifying third and fourth respectively, with exactly the same lap time. However, their paths and race outlooks differ significantly. Verstappen seems to have focused more on race setup, with his RB21 showing unusually high aerodynamic downforce compared to rivals, and a balance geared toward rear tyre protection. This likely came at the cost of some peak qualifying performance—indeed, Verstappen only catches up to Russell right at the final corner, taken flat out by the Dutchman (he and Gasly were the only two to do so).

Russell showed better traction and acceleration and had a generally stronger qualifying car, but still struggles to manage tyre temperatures—an issue seen in long runs and even in qualifying laps. As the lap progresses, rivals close the gap, suggesting the tyres overheat mid-lap. In race terms, Max Verstappen can aim to threaten the McLarens, while George Russell will likely have to defend from behind—though he’s been notably strong off the line at this track in recent years.

Ferrari: promising race pace, but Charles Leclerc’s early Q3 run was a missed opportunity
Turning to Ferrari, the SF-25 delivered better-than-expected performance over a single lap at this track. Even Lewis Hamilton—who’s often struggled this year—had a more consistent session, finishing fifth and showing good feedback from the car. Ferrari’s aero numbers even rival McLaren’s, showing the team was able to run low ride heights with a stiff suspension setup. However, this may have compromised traction, particularly in the first sector.

Once past that first segment—where Hamilton loses time—he gains ground on George Russell and Max Verstappen in sector two, especially up to Turn 7, but then loses out again in traction between Turns 7 and 9. Hamilton still struggles in high-speed corners like 9 and 14, where he clocks 9 km/h slower than Piastri’s 275 km/h. Yet he’s fastest in the technical, uphill Turn 12, suggesting tyres still in good shape and confirming high downforce levels.

It’s a shame Charles Leclerc didn’t wait to set his final Q3 lap, as the track improved notably with cooler conditions brought by cloud cover. His time was just 86 thousandths slower than Lewis Hamilton’s, yet the surface improved by at least two tenths at the end. The Monegasque likely could have fought for the second row alongside Russell and Verstappen. “My choice,” Charles Leclerc said without hesitation after qualifying, explaining that—besides preserving the medium compound in FP3—he also wanted to save a soft set with only an in-out lap to maximise race options. He skipped an initial Q3 attempt and ran a lap early to avoid potential yellow flags.

Ultimately, Ferrari and Leclerc’s strategy—saving both a fresh medium and lightly-used soft—could prove smart. Simulations show softer compounds offer much better grip with similar degradation to harder ones. This could help Leclerc stage a strong recovery and contend for the podium against Max Verstappen (assuming the McLarens are out of reach). The most likely plan is soft (used) – medium (new) – medium (new), a perfect fit for his tyre situation. Still, had Charles Leclerc started 2-3 spots higher, his race outlook would be far simpler.

Race all about thermal degradation and tyre strategy
Based on all this, it’s clear what will shape the race. Thermal degradation will be the decisive factor, with tyre overheating management crucial, especially for teams running softer compounds, which are clearly favoured in simulations. Those who can push without overheating will gain time; those who must back off to control temps will lose positions.

Overtaking is possible, and the long straight to Turn 1 will be a key moment. It’s hard to see anyone challenging the McLarens, who look poised to dominate thanks to their ability to contain tyre temperatures via their brake duct cooling system—especially effective at this circuit. Verstappen will try to challenge from the start, while Russell and Mercedes may need to defend in what could be a tough race for them.

Ferrari starts further back but may have better pace than Mercedes and could challenge Max Verstappen—Lewis Hamilton if he gets a good start and maintains rhythm, and Leclerc if he gets off the line well and capitalises on his tyre advantage. The top two positions seem locked in (though Lando Norris and Oscar Piastri may fight), but the battle behind promises plenty of action.