Abstract:
The automotive industry is undergoing an intensive technological transformation driven by environmental regulations, supply-chain disruptions, and the growing competitiveness of electric and digitally integrated vehicle producers. This study examines the impact of advanced manufacturing technologies-automation, digital twins, AI-based analytics, MES/ERP integration, and platform electrification-on efficiency and productivity in three automotive manufacturers: Toyota, Tesla, and Volkswagen. Employing a mixedmethods approach, the research combines quantitative indicators (OEE, takt time, unit cost, energy consumption) collected between 2015 and 2024 with qualitative insights from semi-structured interviews with production managers, engineers, and labour representatives. A Difference-in-Differences model evaluates changes in key performance indicators relative to industry benchmarks. Findings indicate that Industry 4.0 technologies significantly improve operational performance, though outcomes vary according to each company's innovation strategy: Toyota's digital lean systems yield incremental process optimization; Tesla's radical simplification and automation generate high productivity gains but increase system fragility; Volkswagen's large-scale electrification-led plant conversion enhances flexibility but requires substantial transition costs. The study contributes to the literature by providing a comparative, multi-company analysis of technological transformation and offers recommendations for policymakers and manufacturers seeking to strengthen resilience, competitiveness, and sustainability in advanced automotive production systems.
