China’s EV Makers Are Going Big With Full-Size Family SUVs, Raising Road Wear and Tax Concerns

China full-size family SUV EVs heavier battery road damage, Digi Mart USA News: Chinese carmakers, long known for compact city-friendly electric vehicles, are increasingly building larger models. According to the China Passenger Car Association (CPCA), SUVs measuring 5 to 5.5 meters (16.4 to 18 feet) accounted for 56% of all new SUV launches in the first ten months of 2026, up from 17% in 2024.

CPCA chief Cui Dongshu attributes the shift to fierce price competition, with large SUVs and MPVs serving as a showcase for technology and a way to protect margins. The end of subsidies and rising costs have also hurt small car development, the article reports.

The trend extends beyond SUVs. The share of new energy vehicle models longer than 5 meters rose from 34% to 58% in two years, while the 4.5 to 5 meter class fell from 55% to 40%.

Bigger vehicles usually carry bigger batteries. Nio CEO William Li recently said some models carry packs of up to 120 kWh weighing 700 to 800 kg (1,543 to 1,764 lbs).

By his calculation, a vehicle 1.2 times heavier causes roughly 2.07 times the road damage, based on the pavement-engineering “fourth-power law”, in which damage scales with axle load raised to the fourth power.

Nio says its own battery packs typically weigh 400 to 500 kg (882 to 1,102 lbs), accepting smaller capacity and relying on more efficient drivetrains to offset range. Li said he does not know whether the market will reward that approach.

Chinese regulators are responding. A mandatory energy-consumption standard that took effect in January links limits to curb weight, and authorities are reportedly studying a weight-based tax.

Cui has also suggested standards for economy cars and support for micro EVs.

The same road-wear concern is emerging in the United States. Some studies cited in the report suggest electric cars damage road infrastructure more than internal-combustion vehicles because they are heavier.

The Highway Trust Fund, which pays for road maintenance, faces a funding shortfall as EV adoption grows, and some states are considering or implementing EV road taxes that can be higher than those for gasoline vehicles.