Performance, power and 0-100 km/h
2025 BYD Tang EV AWD has the quicker recorded 0-100 km/h time at 4.4 seconds, compared with 5.6 seconds for 2026 Audi Q8 e-tron 55 quattro. 2025 BYD Tang EV AWD has the higher listed output at 517 hp; 2026 Audi Q8 e-tron 55 quattro is rated at 408 hp, a difference of 109 hp. The torque figures follow 2025 BYD Tang EV AWD at 680 Nm and 2026 Audi Q8 e-tron 55 quattro at 664 Nm. 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
2025 BYD Tang EV AWD carries the longer listed range at 530 km, against 498 km for 2026 Audi Q8 e-tron 55 quattro. 2026 Audi Q8 e-tron 55 quattro has the lower recorded consumption at 19.8 kWh/100km; 2025 BYD Tang EV AWD is listed at 20.5 kWh/100km. 2026 Audi Q8 e-tron 55 quattro has the higher listed DC charging ceiling at 170 kW, compared with 150 kW. Test cycle, temperature, wheel size and charging conditions can materially affect these results, so only figures measured on the same basis should be treated as directly comparable.
Dimensions, cargo space and towing
2026 Audi Q8 e-tron 55 quattro provides the larger quoted cargo volume: 569 litres versus 235 litres, a difference of 334 litres. 2026 Audi Q8 e-tron 55 quattro carries the higher towing rating at 2,500 kg, while 2025 BYD Tang EV AWD is listed at 1,500 kg. 2025 BYD Tang EV AWD is 55 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
2025 BYD Tang EV AWD has the lower listed starting price at $69,800, compared with $75,200 for 2026 Audi Q8 e-tron 55 quattro. 2025 BYD Tang EV AWD 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.