As Formula 1 enters its 2026 summer break following the Hungarian Grand Prix, the paddock conversation has moved far beyond front-wing flex and tire degradation. Instead, the political and technical spotlight is squarely trained on ADUO—the FIA’s Additional Development and Upgrade Opportunities mechanism governing the sport’s all-new, 50/50 hybrid power unit regulations.
Designed as a financial and technical safety net to prevent a repeat of the unbridgeable engine disparities of 2014, ADUO evaluates internal combustion engine (ICE) output across three set assessment windows per season. If a manufacturer’s ICE falls 2% to 4% behind the benchmark, they receive one upgrade token and up to $3.0M in cost-cap relief; if the deficit reaches 4% or more, they earn two upgrade tokens and up to $4.65M in extra development spend.
With the second assessment window now locked in, every power unit supplier on the grid is executing vastly different strategic playbooks. Here is a comprehensive breakdown of where all six manufacturers stand heading into the second half of the season.
Scuderia Ferrari: The “ADUO 2” Monza Special
- Status: Eligible for 2 Upgrades (>4% ICE Deficit)
- Plan: Major engine upgrade planned for the Italian Grand Prix (Monza).
Having registered more than 4% adrift of the benchmark ICE during early-season evaluations, Maranello was granted the maximum allowance of two ADUO upgrade tokens for 2026. After bringing a small, efficiency-focused iteration earlier in the year, Ferrari has spent the summer preparing an aggressive “ADUO 2” package.
Reports out of Italy indicate the upgrade features a redesigned turbocharger assembly and modified combustion chamber geometry aimed at tackling straight-line top-speed deficits. With Monza demands looming, Ferrari intends to unleash the full extent of their extra $4.65M development cap on home soil.
Mercedes-AMG F1: The Tactical Reversal
- Status: Eligible for 1 Upgrade (2%–4% ICE Deficit)
- Plan: Fast-tracking a mid-season counter-strike.
Initially, Mercedes took a conservative stance, preferring to bank their single ADUO token to aid development for the 2027 engine package. However, following recent competitive shifts and Ferrari’s impending engine push, Brackley has reversed course.
Rumors out of the post-Hungary paddock suggest Mercedes is now expediting an upgraded ICE spec. With both George Russell and Kimi Antonelli approaching their hardware limits, Mercedes may absorb strategic grid penalties at a high-speed circuit to introduce a fresh, up-rated power unit, ensuring they don’t cede straight-line performance to their primary rivals.
Red Bull Powertrains / Ford: Victors of Their Own Success
- Status: Ineligible (Set the Benchmark)
- Plan: Maximize current package; lobby for regulatory tweaks.
In a twist that surprised rival engineers, the Red Bull-Ford internal combustion engine was classified as the baseline benchmark during initial FIA calculations. While this validates the technical output of the Milton Keynes facility, it leaves Red Bull completely barred from ADUO concessions.
Max Verstappen has not hidden his frustration, noting after Hungary that he would “love to have some ADUO” to find extra straight-line speed. Because ADUO explicitly measures the ICE and ignores electrical ERS deployment—where Mercedes and Ferrari excel—Red Bull finds itself locked out of financial and development relief despite facing fierce overall power unit competition.
Honda Racing Corporation (Aston Martin): Full Speed for Zandvoort
- Status: Eligible for 2 Upgrades (>4% ICE Deficit)
- Plan: Debut major ADUO package at the Dutch Grand Prix.
Honda’s return as a full factory engine supplier with Aston Martin got off to a turbulent start, with early power unit integration issues putting them well past the 4% deficit threshold. However, HRC is taking full advantage of the regulatory lifeline.
After teasing a revised power unit architecture to selected media in Budapest, Honda is set to formally introduce its primary ADUO race upgrade at Zandvoort. The package focuses on improving energy conversion efficiency and structural durability, giving Aston Martin a much-needed shot in the arm for the European run-in.
Audi: The 2027 Long Game
- Status: Eligible for 2 Upgrades (>4% ICE Deficit)
- Plan: Forfeiting 2026 upgrade tokens to preserve long-term resources.
Despite holding eligibility for two ADUO upgrade tokens, Audi has chosen a radically different path. Former F1 driver and Audi lead Allan McNish confirmed in Hungary that the German brand will not spend its second 2026 upgrade token.
Rather than rushing short-term fixes onto a baseline chassis during their build-up year, Audi is opting to save its budget cap expenditure and dyno testing allocation for their 2027 engine architecture. It is a calculated gamble: sacrifice immediate results in late 2026 for a far stronger foundation next season.
Alpine / Renault: Navigating the Transition
- Status: Limited Allowance
- Plan: Focus on operational reliability and ERS optimization.
With Enstone continuing to manage its ongoing technical restructuring, the Renault power unit program has focused its ADUO allowances strictly on system reliability and electrical software integration rather than high-risk mechanical overhauls. Realizing that raw ICE hardware changes offer diminishing returns late in the year, Alpine is focusing on maximizing ERS recovery strategies to optimize lap-time sensitivity without overspending.
Summary: ADUO Status Across the Grid
Manufacturer | Benchmark Status | Tokens Granted | Next Major ADUO Deployment |
|---|---|---|---|
Red Bull-Ford | 1st (Benchmark) | 0 | None (Ineligible) |
Mercedes | 2% – 4% Deficit | 1 Token | Expected Monza (Italian GP) |
Ferrari | >4% Deficit | 2 Tokens | Confirmed Monza (Italian GP) |
Honda | >4% Deficit | 2 Tokens | Confirmed Zandvoort (Dutch GP) |
Audi | >4% Deficit | 2 Tokens | Forfeiting second 2026 token for 2027 |
Alpine/Renault | 2% – 4% Deficit | 1 Token | Focused on ERS/Software integration |
