Performance, power and 0-100 km/h
2024 Infiniti QX50 Luxe AWD has the quicker recorded 0-100 km/h time at 6.4 seconds, compared with 6.9 seconds for 2025 Mercedes-Benz GLB 250 4MATIC. 2024 Infiniti QX50 Luxe AWD has the higher listed output at 268 hp; 2025 Mercedes-Benz GLB 250 4MATIC is rated at 221 hp, a difference of 47 hp. The torque figures follow 2024 Infiniti QX50 Luxe AWD at 380 Nm and 2025 Mercedes-Benz GLB 250 4MATIC at 350 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 Mercedes-Benz GLB 250 4MATIC has the lower recorded consumption at 8.1 L/100km; 2024 Infiniti QX50 Luxe AWD is listed at 10.0 L/100km. 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 Infiniti QX50 Luxe AWD provides the larger quoted cargo volume: 895 litres versus 500 litres, a difference of 395 litres. 2025 Mercedes-Benz GLB 250 4MATIC carries the higher towing rating at 1,800 kg, while 2024 Infiniti QX50 Luxe AWD is listed at 1,588 kg. 2024 Infiniti QX50 Luxe AWD is 59 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 Infiniti QX50 Luxe AWD has the lower listed starting price at $44,550, compared with $44,850 for 2025 Mercedes-Benz GLB 250 4MATIC. 2024 Infiniti QX50 Luxe 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.