Performance, power and 0-100 km/h
2025 NIO ET7 100 kWh has the quicker recorded 0-100 km/h time at 3.8 seconds, compared with 6.3 seconds for 2025 Mercedes-Benz E-Class E 300 e. 2025 NIO ET7 100 kWh has the higher listed output at 653 hp; 2025 Mercedes-Benz E-Class E 300 e is rated at 313 hp, a difference of 340 hp. The torque figures follow 2025 NIO ET7 100 kWh at 850 Nm and 2025 Mercedes-Benz E-Class E 300 e at 550 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 NIO ET7 100 kWh carries the longer listed range at 585 km, against 103 km for 2025 Mercedes-Benz E-Class E 300 e. 2025 NIO ET7 100 kWh has the higher listed DC charging ceiling at 140 kW, compared with 60 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
2025 Mercedes-Benz E-Class E 300 e provides the larger quoted cargo volume: 540 litres versus 386 litres, a difference of 154 litres. 2025 NIO ET7 100 kWh is 152 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
The two entries have the same listed starting price of $69,900. 2025 NIO ET7 100 kWh 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.