BYD’s Two-Pronged Wager on Autonomy: A Full-Liability Safety Net and a Homegrown 4nm Chip

Consumer hesitation around autonomous driving often boils down to a single question: who pays if something goes wrong? BYD’s answer is unequivocal. The Chinese automaker has become the first manufacturer worldwide to assume full financial responsibility for accidents caused by its urban driver?assistance systems – a move that cuts through the legal fog and puts warm metal behind its marketing claims.

The “Full Damage Coverage” programme applies to the company’s proprietary God’s Eye system, specifically the Urban Navigate on Autopilot (NOA) and intelligent parking functions. Buyers of vehicles equipped with Version A or B of the system receive one year of protection from the point of delivery, covering vehicle damage and third?party liability. Existing owners can activate the coverage via an over?the?air update to version 5.0. BYD chairman Wang Chuanfu framed the decision bluntly: by shouldering Level?3 and Level?4 liability for a system that technically still operates at Level 2, the company is effectively betting its own balance sheet on the reliability of its technology.

That bet is backed by serious hardware. BYD recently unveiled the Xuanji?A3 chip, China’s first domestically designed automotive SoC built on a 4?nanometre process. The system processes roughly 200 million kilometres of driving data from its own fleet each day. To maintain that edge, the company has earmarked over 100 billion yuan (roughly 15 billion dollars) for autonomous?driving development over the next three years. The God’s Eye suite, including optional LiDAR, is expected to be available across the model line for around 12,000 yuan. The ultimate target: “Zero Traffic Accidents”.

Should investors sell immediately? Or is it worth buying BYD?

The liability guarantee is not happening in isolation. This week BYD rolled out two new models built on the fifth generation of its DM?i hybrid technology. The 2026 Sealion 06 DM?i launched on Tuesday at 129,900 yuan (about 19,140 US dollars), followed two days later by the Song Ultra DM?i at the same entry price. Both claim a combined range of up to 1,845 kilometres and a fuel consumption of 3.3 litres per 100 kilometres when the battery is depleted. Separately, the Yuan Plus – sold internationally as the Atto 3 – received new LFP batteries that can charge from 10% to 70% in just five minutes.

Internationally, BYD is making headway despite headwinds. Chinese EV makers collectively now hold more than 15% of the European electric?vehicle market, and BYD alone posted roughly 27,000 registrations in Europe in April 2026 – more than double the year?earlier figure. That growth comes despite EU punitive tariffs of 17% to 35.3% on Chinese?made EVs. To bypass those levies, BYD is advancing construction of its first European plant in Hungary; once production begins, import duties will disappear. New trade pacts between Mexico and the EU could also open an alternative distribution channel in the medium term.

The market, however, has yet to fully embrace the narrative. BYD’s H?shares closed at 90.30 Hong Kong dollars on Friday, flat on the day but roughly 13.6% below the level at the start of the month. The stock touched a weekly high of 93.65 Hong Kong dollars on Tuesday before retreating. Over the past 30 days the shares have lost about 15.7%. Margin pressure adds to investor unease: net margin slipped to 3.5% from 5.4% a year earlier, and the new service?oriented model could squeeze profitability further. The consensus analyst target of 124.46 Hong Kong dollars implies upside of roughly 27%, but the real test will come when the Xuanji?A3 chip enters broader deployment, slated for the end of 2026.

By combining a full?liability safety net with its own silicon and a massive investment war?chest, BYD is forcing rivals like NIO and Xpeng to either match the offer or risk losing the trust battle. Whether the strategy reignites investor confidence as effectively as it aims to reassure drivers will become clearer once the next batch of sales data lands.

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