Overview
- The FIA has opened a formal recheck of ADUO torque-sensor data after Red Bull challenged the provisional ranking that named its internal-combustion engine the benchmark.
- The recheck has paused final ADUO allocations, so the extra homologation slots, dyno hours and cost-cap allowances tied to those allocations remain unsettled.
- Audi quietly fitted upgraded internal-combustion engines and turbochargers at the Barcelona Grand Prix using its ADUO allowance, making it the first team to run an ADUO-linked unit on track.
- Ferrari has introduced a combustion-chamber update targeted for Austria and plans a second ADUO-driven turbocharger change after the summer break to close a measured ICE gap to the benchmark.
- ADUO measures only ICE attributes such as torque, rev range and MGU-K contribution and excludes battery and ERS effects, so measured gains can differ from actual on-track performance and converting dyno changes into race-fit engines can take months.