Key takeaways

Although holding a championship cushion in both standings, Mercedes is showing signs of concern following Lando Norris’ back-to-back victories in Hungary and Zandvoort. To add to the drama, championship leader Andrea Kimi Antonelli will start from the rear of the grid at his home race in Monza due to an engine penalty. However, beyond Monza’s reputation as an overtaking-friendly venue for a recovery drive, the tactical decision conceals a strategic masterstroke.

The key revolves around ADUO (Additional Development and Update Opportunities), a concession mechanism introduced alongside the 2026 engine regulations. Under these rules, Red Bull Ford was established as the baseline reference, with Mercedes deemed to be 2% behind in overall performance. This gap grants the German manufacturer regulatory approval to introduce power unit upgrades during the 2026 campaign.

While team principal Toto Wolff previously claimed Mercedes lacks financial scope under the cost cap for major development—a claim dismissed by McLaren’s Andrea Stella due to built-in regulatory spending buffers—the accelerating development race may force Mercedes’ hand.

Toto Wolff and Mercedes hold a potential engine upgrade under ADUO rules (Photo: AFP)

Ferrari is set to introduce its second allowed 2026 engine update at Monza, taking advantage of its 4% ADUO deficit to gain an estimated 15 horsepower alongside new fuel formulations from Shell. According to Motorsport Italy, Antonelli’s fifth power unit at Monza could feature revised components under ADUO rules, going beyond simple main turbine management adjustments.

Additionally, Mercedes is reportedly preparing a substantial aerodynamic package for the Malaysian Grand Prix, positioned between Azerbaijan and Singapore. Combined with an upgraded engine specification, this would represent the Silver Arrows’ final development push for 2026.

Crucially, because Mercedes supplies engines to McLaren, any ADUO power unit specification introduced by Brackley must also be made available to its customer teams.

The Italian Grand Prix promises to deliver crucial answers regarding the three-way battle between Mercedes, Ferrari, and McLaren, shaping the competitive hierarchy for the remainder of the 2026 season.

Lewis Hamilton took responsibility for heated radio messages as Ferrari prepares for its home race, while Lando Norris avoids excitement despite his recent form and McLaren identifies Monza performance as key to its 2026 battle against Mercedes.

Formula 1 returns from September 4–6 at Monza for the Italian Grand Prix, the 13th round of the 2026 season. GRANDE PRÊMIO provides complete live coverage of all track action. Follow all updates on our news page.

World Championship Standings (Top 5 after Dutch GP)

PosDriverTeamEnginePoints
1Andrea Kimi AntonelliMercedesMercedes242
2George RussellMercedesMercedes183
3Lewis HamiltonFerrariFerrari183
4Lando NorrisMcLarenMercedes159
5Charles LeclercFerrariFerrari155

Frequently asked questions (FAQ)

1. Why will Andrea Kimi Antonelli start from the back of the grid at the Italian GP?

Antonelli is taking a grid penalty for introducing his fifth power unit element of the 2026 season at Monza.

2. What is the ADUO system in Formula 1’s 2026 regulations?

ADUO (Additional Development and Update Opportunities) allows engine manufacturers trailing the benchmark supplier (Red Bull Ford) in performance to introduce performance-focused engine upgrades during the season.

3. Will McLaren receive the same engine upgrades as Mercedes?

Yes. Under FIA customer supply regulations, any upgraded power unit specification introduced by Mercedes under ADUO rules must be made available to customer teams, including McLaren.