Performance, power and 0-100 km/h
2025 Volvo XC40 B4 Mild Hybrid has the quicker recorded 0-100 km/h time at 7.8 seconds, compared with 8.7 seconds for 2024 BYD Seal U DM-i Comfort. 2024 BYD Seal U DM-i Comfort has the higher listed output at 218 hp; 2025 Volvo XC40 B4 Mild Hybrid is rated at 197 hp, a difference of 21 hp. Both specifications list 300 Nm of torque. These figures describe straight-line potential only; they do not establish braking performance, ride quality, steering response or durability under repeated hard use.
Range, battery, charging and efficiency
Range and energy-use figures are either not shared by both cars or not directly comparable across these powertrain types.
Dimensions, cargo space and towing
2025 Volvo XC40 B4 Mild Hybrid provides the larger quoted cargo volume: 452 litres versus 425 litres, a difference of 27 litres. 2025 Volvo XC40 B4 Mild Hybrid carries the higher towing rating at 1,800 kg, while 2024 BYD Seal U DM-i Comfort is listed at 750 kg. 2024 BYD Seal U DM-i Comfort is 335 mm longer overall. Exterior size is not a benefit by itself: a longer body may create useful room, but cargo shape, rear-seat space and ease of parking still require a physical inspection.
Price and overall assessment
2024 BYD Seal U DM-i Comfort has the lower listed starting price at $35,900, compared with $39,590 for 2025 Volvo XC40 B4 Mild Hybrid. 2025 Volvo XC40 B4 Mild Hybrid leads in more of the shared headline fields, but that is not a universal verdict: a buyer should weight price, performance, range and utility rather than simply count category wins. The assessment is based on the specifications shown here; it is not presented as a two-car road test.