Overview
- An FIA spokesperson confirmed the rules currently measure the 16.0:1 limit at ambient conditions and said discussions with power unit manufacturers are ongoing, with potential procedural adjustments under consideration.
- Reporting has highlighted Mercedes and Red Bull for alleged use of a thermal‑expansion design worth an estimated 15 horsepower, with Audi, Honda and Ferrari pressing the FIA to clarify the interpretation.
- Mercedes teased its 2026 power unit with an audio clip and is widely viewed as well prepared, supplying McLaren, Williams and Alpine as it eyes the new regulations.
- Red Bull’s first in‑house engine with Ford support is progressing, with team boss Laurent Mekies urging caution on early expectations and Max Verstappen’s manager saying he is hearing 'good things' pending on‑track proof.
- The 2026 power units increase electrical output toward a roughly 50/50 split and remove the MGU‑H, and pre‑season running and the Australian opener are expected to reveal competitiveness and could prompt formal protests.