FIA, ACO and IMSA Propose Single 2030 Hypercar Rulebook

Overview

• The three sanctioning bodies publicly outlined a unified 2030 top‑class ruleset that merges LMDh and LMH and lets manufacturers either build bespoke chassis, engines and hybrid systems or source them from suppliers.
• Porsche called the single ruleset a “significant step” and said the 2030 regulations “will play a role” in any future WEC Hypercar decision while stressing it has made no comeback choice and will not return for 2027.
• Foundational proposals include common chassis rules, the removal of four‑wheel drive to lower complexity and cost, and multi‑year homologation windows to protect manufacturers’ investments.
• Key technical questions remain unresolved, notably how bespoke hybrid systems and bespoke chassis will be performance‑matched to off‑the‑shelf components, with work to be completed in technical groups through the rest of 2026.
• Porsche’s 2025 withdrawal was driven by commercial pressures such as weakening sales in China and losses linked to geopolitical developments plus frustration with Balance of Performance, and the brand has reconfirmed its factory commitment to IMSA through at least 2027.