State of Automotive E/E Architecture 2026
Measuring the Migration — 22 OEMs across the AR0–AR5 Ladder
Abstract
An empirical assessment of E/E architecture maturity across 22 major global automakers, scoring each on five dimensions and the AR0–AR5 ladder in both its deployed state and its confirmed near-term roadmap. The central finding is structural: leadership on architecture maturity has migrated away from the industry’s traditional centers — only Tesla and Huawei HIMA reach AR4, while Chinese new entrants dominate the AR3 cluster and the European and Japanese/Korean majors trail. A methodological throughline runs across the report: functional-safety certification is not a proxy for architecture maturity.
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archi-intelligence Research Team. (2026). State of Automotive E/E Architecture 2026: Measuring the Migration — 22 OEMs across the AR0–AR5 Ladder (Working Paper 2026-02). archi-intelligence Research Series. https://doi.org/10.5281/zenodo.20513865