Performance, power and 0-100 km/h
2025 Mercedes-Benz GLS GLS 450 4MATIC has the quicker recorded 0-100 km/h time at 5.9 seconds, compared with 6.5 seconds for 2025 GMC Yukon Denali. 2025 GMC Yukon Denali has the higher listed output at 420 hp; 2025 Mercedes-Benz GLS GLS 450 4MATIC is rated at 362 hp, a difference of 58 hp. The torque figures follow 2025 GMC Yukon Denali at 624 Nm and 2025 Mercedes-Benz GLS GLS 450 4MATIC at 500 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 GLS GLS 450 4MATIC has the lower recorded consumption at 10.6 L/100km; 2025 GMC Yukon Denali is listed at 12.8 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
2025 GMC Yukon Denali provides the larger quoted cargo volume: 722 litres versus 680 litres, a difference of 42 litres. 2025 GMC Yukon Denali carries the higher towing rating at 3,901 kg, while 2025 Mercedes-Benz GLS GLS 450 4MATIC is listed at 3,500 kg. 2025 GMC Yukon Denali is 174 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 GMC Yukon Denali has the lower listed starting price at $72,100, compared with $88,500 for 2025 Mercedes-Benz GLS GLS 450 4MATIC. 2025 GMC Yukon Denali 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.