BYD’s March Sales Miss Clouds Rollout of Autonomous Chip and Record-Efficiency Hybrid

BYD's 4nm autonomous chip and 46.06% efficient hybrid are breakthroughs, but March sales miss (300,222 vs 320-350k) caused stock drops of 1.71% and 3.4%.

BYD stunned the industry in late May with a pair of technological breakthroughs – a self-developed 4-nanometer autonomous-driving chip and a hybrid engine that set a new efficiency benchmark. Yet the reception on the Hong Kong Stock Exchange was tepid, as investors weighed those accomplishments against a significant sales miss for March that underscored the gap between innovation and market reality.

On 28 May, BYD shares slipped 1.71% to HK$89.15, with short sales accounting for 14% of trading volume. The session followed a 3.4% drop the previous day, when a block trade of 55,700 shares changed hands at HK$90.50 as the market digested the forthcoming product blitz. The dual decline reflects a persistent skepticism: despite the company’s technological firepower, it sold just 300,222 new energy vehicles in March – well below its own forecast of 320,000 to 350,000 units. Passenger cars made up 295,693 of that total.

The chip that could redefine autonomy

At the heart of BYD’s latest hardware offensive is the Xuanji A3 chip, built on a 4nm architecture and designed for Level 3 and Level 4 autonomy. Three chips working in tandem deliver over 2,100 TOPS of computing power, with BYD claiming it has doubled the utilisation of that power through proprietary software. The chip is already in mass production.

To reach that point, BYD has deployed more than 7,000 employees in chip development and operates five wafer fabrication plants of its own. Research spending in the semiconductor division has surpassed 100 billion yuan – roughly US$14.75 billion – and the company integrates over 2,000 different chip products into its vehicles. BYD says it is the only car manufacturer in the world with a complete in-house chip fabrication capability.

Alongside the chip, chairman Wang Chuanfu unveiled an expanded “God’s Eye” driver-assistance service package. The long-term goal is zero traffic fatalities through intelligent driving technology. BYD will cover the full repair cost of accidents that occur while the “City Navigation” function is active, with no impact on the vehicle owner’s insurance premium. For budget-conscious buyers, the lower-tier “God’s Eye B” upgrade is available at 12,000 yuan, or about US$1,770.

A hybrid that breaks the efficiency ceiling

Just two days earlier, BYD had taken the wraps off the fifth generation of its Dual-Mode Intelligent (DM-i) hybrid system at a launch event in Xi’an. The headline figure is a thermal efficiency of 46.06% for the petrol engine – a global record for a production unit. That translates to a certified fuel consumption of just 2.9 litres per 100 kilometres when the battery is depleted.

The first two models to feature the new powertrain are the Qin L and the Seal 06, both mid-sized saloons available in five trim levels each. Pricing starts at around US$13,770 and rises to roughly US$19,300 for the top specification, which accelerates from 0 to 100 km/h in 7.5 seconds. Electric-only range is 80 or 120 kilometres depending on the battery pack, but the combined range – with a full tank and a charged battery – is up to 2,100 kilometres, a figure that lifts plug-in hybrids into a new competitive territory.

Analysts see a second-quarter recovery

Despite the March sales disappointment and recent share price weakness, several major institutions are looking for a rebound. Both Goldman Sachs and Citigroup expect a recovery phase to begin in the second quarter of 2026. Citigroup forecasts a core profit of approximately 11.30 billion yuan for the current quarter, supported by more stable domestic pricing and a shift toward higher-margin new models like the DM-i lineup.

BYD’s domestic market share in new energy vehicles remains around 40%, and the company is simultaneously ramping up global production. The factory in Camaçari, Brazil, has begun mass production, with an initial annual capacity of 150,000 units that is slated to expand to 600,000.

The technology push extends to charging infrastructure as well. BYD’s “Megawatt Flash Charge 2.0” can take a battery from 10% to 97% charge in roughly nine minutes. The company plans to have 20,000 such stations operational by the end of 2026 – a capital-intensive undertaking that underscores its determination to stay ahead, even as near-term sales figures occasionally lag its soaring ambitions.