Chinese EVs Upend Six-Decade Order in Southeast Asia — Is Japan's Stronghold Cracking?

Market shock: China gains ground in Thailand and beyond

January 2026 brought a seismic shift in Thailand’s auto market, with Chinese brands taking a crushing lead in pure-electric vehicle (EV) sales. According to the Federation of Thai Industries (FTI), monthly EV sales hit 31,860 — up 354% year‑on‑year — and Chinese marques accounted for more than 75% of that segment. Toyota still led overall monthly sales (19,113 units), but BYD (比亚迪) sold 12,812 units and Chery (奇瑞) 9,714, while six Chinese brands entered the top ten. Reportedly, Chinese brands’ aggregate share in Thailand rose to 47.34%, narrowly ahead of Japanese marques at 47.338% — the first time Chinese automakers have overtaken Japan in total sales there.

Why Japan ruled — and why the crown is slipping

Japan’s dominance in Southeast Asia was built over decades of deep local embedding: early manufacturing, sprawling dealer and service networks, parts availability, vocational training and community projects that stitched brands into daily life. Toyota’s presence in Thailand since the 1950s, local assembly lines, and long-term social programs helped make Japanese cars synonymous with durability, resale value and easy after‑sales care. YouGov polling still shows high trust in Japanese quality in Indonesia — 90% see it as “high quality,” 83% as “good value.” So why are drivers switching? Because Chinese EVs now match or beat price/performance where it matters: small, affordable urban models, big battery ranges and aggressive local incentives.

Policy, products and perceptions collide — what comes next?

Several forces converged. Subsidies and consumer incentives in markets such as Indonesia and Thailand have accelerated EV adoption; it has been reported that Indonesian EV subsidies helped Chinese market share double to roughly 14% and pushed BYD (比亚迪) into third place in October 2025. At the same time, Nikkei reports Japanese car sales across six major Southeast Asian markets fell 22% from 2019 levels. Some drivers still prefer Japanese after‑sales reliability, noting EV repairs can take longer because parts are often shipped from China — it has been reported that repair times for some EVs stretch into weeks. Geopolitically, this competition sits against broader US‑China trade frictions and tighter export controls on high‑end chips and EV materials, making Southeast Asia a strategic battleground for supply chains and market access. Can Japanese makers pour investment into local EV lines and faster parts networks to reverse the trend? The answer will shape the region’s auto landscape for years.