Ferrari's ADUO advantage could significantly close gap to Mercedes

Ferrari is poised to make significant gains on reigning champions Mercedes, thanks to a regulatory concession known as the ADUO (Additional Dyno Usage Opportunity). The rule allows power unit manufacturers lagging in performance extra development time, which Ferrari driver Kimi Antonelli confirms his team will use to bring major engine upgrades. While acknowledging the threat, Mercedes' Antonelli remains confident in his team's own upgrade plans and recent performance level.

Why it matters:

The ADUO system is designed to level the playing field in F1's new engine era, directly impacting the championship battle. If Ferrari successfully leverages this advantage, it could disrupt Mercedes' current benchmark status and tighten the fight at the front, making the development race a central storyline for the season's second half.

The Details:

• The new 2026 power unit regulations include a performance-balancing mechanism. Manufacturers with a performance deficit, like Ferrari relative to benchmark-setter Mercedes, are granted extended dyno testing time and scope for additional upgrades.
• Kimi Antonelli, speaking to Sky Sport Italy, revealed specific knowledge of Ferrari's plans: "I know there will be some major changes, including the ADUO allowance granted to Ferrari, which will enable them to further develop their engine."
• Antonelli predicts a tangible on-track effect: "They will definitely close the gap significantly, because their car is already strong, so if they also manage to improve the power unit, they’ll get even closer."
• Despite the challenge, the Mercedes driver is unfazed, focusing on his own performance and revealing Mercedes also has significant upgrades in the pipeline, stating, "The car is already performing well."

What's next:

The true impact of the ADUO rules and Ferrari's development push will become clear within the next handful of races. This sets up a critical mid-season phase where in-season power unit development could become a key differentiator, with Mercedes and Ferrari both bringing substantial upgrades in a direct technical duel.