Performance, power and 0-100 km/h
2024 Lexus RZ 450e has the quicker recorded 0-100 km/h time at 4.8 seconds, compared with 6.7 seconds for 2025 Audi Q4 e-tron 40. 2024 Lexus RZ 450e has the higher listed output at 315 hp; 2025 Audi Q4 e-tron 40 is rated at 286 hp, a difference of 29 hp. The torque figures follow 2024 Lexus RZ 450e at 435 Nm and 2025 Audi Q4 e-tron 40 at 310 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 Audi Q4 e-tron 40 carries the longer listed range at 535 km, against 440 km for 2024 Lexus RZ 450e. 2024 Lexus RZ 450e has the lower recorded consumption at 16.2 kWh/100km; 2025 Audi Q4 e-tron 40 is listed at 16.3 kWh/100km. 2025 Audi Q4 e-tron 40 has the higher listed DC charging ceiling at 175 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
2024 Lexus RZ 450e provides the larger quoted cargo volume: 522 litres versus 520 litres, a difference of 2 litres. 2025 Audi Q4 e-tron 40 carries the higher towing rating at 1,200 kg, while 2024 Lexus RZ 450e is listed at 750 kg. 2024 Lexus RZ 450e is 217 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 Audi Q4 e-tron 40 has the lower listed starting price at $50,800, compared with $59,600 for 2024 Lexus RZ 450e. The measured categories split evenly, so the better choice depends on which attributes matter most. The assessment is based on the specifications shown here; it is not presented as a two-car road test.