Alfa Romeo Stelvio Quadrifoglio vs Mercedes-Benz GLS

How does the Alfa Romeo Stelvio Quadrifoglio stack up against the Mercedes-Benz GLS? We put their headline specs side by side so you can see exactly where each car leads.

Alfa Romeo Stelvio QuadrifoglioAlfa Romeo Stelvio Quadrifoglio
vs
Mercedes-Benz GLSMercedes-Benz GLS
SpecAlfa Romeo Stelvio QuadrifoglioMercedes-Benz GLS
Horsepower (max)520 hp603 hp
0-100 km/h (fastest)3.8 s4.1 s
Top speed283 km/h280 km/h
Variants14
Body stylePerformance SUVFull-size 7-seat SUV
GenerationTipo 949 (refresh)X167
Production2018 – present2020 – present
Length4,687 mm5,210 mm
Width1,903 mm1,956 mm
Height1,671 mm1,823 mm
Wheelbase2,818 mm3,135 mm

Alfa Romeo Stelvio Quadrifoglio vs Mercedes-Benz GLS: common questions

Is the Alfa Romeo Stelvio Quadrifoglio or Mercedes-Benz GLS faster?
The Alfa Romeo Stelvio Quadrifoglio is quicker, hitting 0-60 mph in 3.6s versus the Mercedes-Benz GLS's 3.9s (0-100 km/h in 3.8s vs 4.1s).
Which has more horsepower, the Alfa Romeo Stelvio Quadrifoglio or the Mercedes-Benz GLS?
The Mercedes-Benz GLS makes more power: 603 hp (450 kW) versus 520 hp (388 kW) for the Alfa Romeo Stelvio Quadrifoglio.
Is the Alfa Romeo Stelvio Quadrifoglio or Mercedes-Benz GLS faster on top speed?
The Alfa Romeo Stelvio Quadrifoglio has the higher top speed at 176 mph (283 km/h), versus 174 mph (280 km/h) for the Mercedes-Benz GLS.
What is the main difference between the Alfa Romeo Stelvio Quadrifoglio and the Mercedes-Benz GLS?
The Alfa Romeo Stelvio Quadrifoglio is a performance suv, while the Mercedes-Benz GLS is a full-size 7-seat suv. That difference in body style drives most of the others.