Car comparison

Alfa Romeo Stelvio (949) · Facelift 2022 Quadrifoglio 2.9 V6 Bi-TurbovsMercedes-Benz GLS (X167) · Facelift 2023 GLS 580 V8

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Alfa Romeo Stelvio (949) · Facelift 2022

Quadrifoglio 2.9 V6 Bi-Turbo

520 hp2891 ccGasolineAWDAutomaticTwin-turboSUV2023-present

Mercedes-Benz GLS (X167) · Facelift 2023

GLS 580 V8

517 hp3982 ccGasolineAWDAutomaticTwin-turboSUV2023-2026

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo

Quickest 0-100 km/h
3.8 s
Fastest top speed
285 km/h
177 mph
Most powerful
520 hp
388 kW
Lightest
1,850 kg
4,079 lb
Best power-to-weight
281 hp/t
210 kW/t
3.6 kg/hp
Lowest combined fuel consumption
11.8 L/100 km
19.9 mpg US
23.9 mpg UK
Best overall score
86/100
Best performance score
85/100
Best economy score
75/100
Best practicality score
89/100

Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8

Highest torque
730 Nm
538 lb-ft
Best estimated range
634 km
394 mi

Specification comparison

Specification comparison
Model	Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
Power	520hp388kW	517hp386kW
Torque	600Nm443lb-ft	730Nm538lb-ft
Curb weight	1,850kg4,079lb	2,565kg5,655lb
Gross weight	-	3,300kg7,275lb
Top speed	285 km/h 177 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	45.7s99% target: 282 km/h / 175 mph Calculated	72.1s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	3.8s	4.9s
0-200 km/h	11.2s Calculated	18.4s Calculated
0-60 mph	3.6s Calculated	4.6s Calculated
Fuel consumption	11.8L/100 km19.9mpg US23.9mpg UK	14.2L/100 km16.6mpg US19.9mpg UK
Quarter mile	11.6s Calculated	13.1s Calculated
Power-to-weight	281hp/t210kW/t127hp/1000 lb Calculated	202hp/t150kW/t91hp/1000 lb Calculated
Torque-to-weight	324Nm/t217lb-ft/ton Calculated	285Nm/t190lb-ft/ton Calculated
Estimated range	542km337mi Calculated	634km394mi Calculated
Displacement	2,891cc176cu in	3,982cc243cu in
Length	4,701mm185in	5,209mm205in
Width	1,955mm77in	1,956mm77in
Height	1,689mm66in	1,928mm76in
Wheelbase	2,818mm111in	3,135mm123in
Front track	1,623mm64in	1,669mm66in
Rear track	1,675mm66in	1,692mm67in
Ground clearance	-	290mm11in
Trunk volume	-	355L
Max trunk volume	-	2,400L
Doors	5	5
Seats	5	7
Fuel tank	64L	90L

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-TurboMercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	6,500 rpm	2,500 rpm	6,750 rpm
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	5,500 rpm	2,250-4,500 rpm	5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	3.6 s	4.6 s
0-100 km/h 0-62 mph	3.8 s	4.9 s
0-200 km/h 0-124 mph	11.2 s	18.4 s
Top speed	285 km/h 177 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Limited
	Drag race simulation
60 ft 18 m	2.0 s	2.1 s
330 ft 101 m	5.2 s	5.6 s
1/8 mile 201 m	7.7 s	8.5 s
1000 ft 305 m	9.8 s	11.0 s
1/4 mile 402 m	11.6 s	13.1 s
Trap speed 1/4 mile 402 m	203 km/h 126 mph	174 km/h 108 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	520 hp 388 kW
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	517 hp 386 kW

Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo has 3 hp more than Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8.

The biggest power difference is between Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8 and Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo: 3 hp (2 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	600 Nm 443 lb-ft
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	730 Nm 538 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	1,850 kg 4,079 lb
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	2,565 kg 5,655 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	285 km/h 177 mph
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	3.8 s
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	4.9 s

The biggest 0-100 km/h difference is between Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo and Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8: 1.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	11.8 L/100 km 19.9 mpg US 23.9 mpg UK
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	14.2 L/100 km 16.6 mpg US 19.9 mpg UK

The biggest fuel consumption difference is between Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo and Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8: 2.4 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	281 hp/t 210 kW/t 3.6 kg/hp
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	202 hp/t 150 kW/t 5.0 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
Vehicle	Value
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	542 km 337 mi
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	634 km 394 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	520 hp 388 kW	3.8 s	285 km/h 177 mph
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	517 hp 386 kW	4.9 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo

Power	520 hp 388 kW
0-100 km/h	3.8 s
Top speed 285 km/h 177 mph

Doors/seats	5 doors 5 seats
Trunk	-
Length	4,701 mm 185.1 in
Height	1,689 mm 66.5 in

Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8

Power	517 hp 386 kW
0-100 km/h	4.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	5 doors 7 seats
Trunk	355 L 12.5 cu ft
Length	5,209 mm 205.1 in
Height	1,928 mm 75.9 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo

Power	520 hp 388 kW
0-100 km/h	3.8 s
Top speed 285 km/h 177 mph

11.8 L/100 km

19.9 mpg US

23.9 mpg UK

Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8

Power	517 hp 386 kW
0-100 km/h	4.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

14.2 L/100 km

16.6 mpg US

19.9 mpg UK

Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	11.8 L/100 km 19.9 mpg US 23.9 mpg UK	3.8 s
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	14.2 L/100 km 16.6 mpg US 19.9 mpg UK	4.9 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo	281 hp/t 210 kW/t 3.6 kg/hp	11.8 L/100 km 19.9 mpg US 23.9 mpg UK
Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8	202 hp/t 150 kW/t 5.0 kg/hp	14.2 L/100 km 16.6 mpg US 19.9 mpg UK

Detailed score breakdown

Vehicle

Alfa RomeoStelvio (949)Facelift 2022Quadrifoglio 2.9 V6 Bi-Turbo

Mercedes-BenzGLS (X167)Facelift 2023GLS 580 V8

Power

520 hp

388 kW

517 hp

386 kW

Torque

600 Nm

443 lb-ft

730 Nm

538 lb-ft

Acceleration

3.8 s

4.9 s

Top speed

285 km/h

177 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,850 kg

4,079 lb

2,565 kg

5,655 lb

Fuel consumption

11.8 L/100 km

19.9 mpg US

23.9 mpg UK

14.2 L/100 km

16.6 mpg US

19.9 mpg UK

Practicality

Doors/seats	5 doors 5 seats
Trunk	-
Length	4,701 mm 185.1 in
Height	1,689 mm 66.5 in

Doors/seats	5 doors 7 seats
Trunk	355 L 12.5 cu ft
Length	5,209 mm 205.1 in
Height	1,928 mm 75.9 in

Range score

542 km

337 mi

634 km

394 mi

Trunk score

355 L

12.5 cu ft

Power-to-weight score

281 hp/t

210 kW/t

3.6 kg/hp

202 hp/t

150 kW/t

5.0 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
Vehicle	Alfa Romeo Stelvio (949) Facelift 2022 Quadrifoglio 2.9 V6 Bi-Turbo	Mercedes-Benz GLS (X167) Facelift 2023 GLS 580 V8
Consumption	11.8 L/100 km19.9 mpg US23.9 mpg UK	14.2 L/100 km16.6 mpg US19.9 mpg UK
Cost / 100 km	20.65 LC100 km	24.85 LC100 km
Cost / 100 mi	33.23 LC100 mi	39.99 LC100 mi
Annual fuel used	1,770 L468 US gal389 UK gal	2,130 L563 US gal469 UK gal
Annual fuel cost	3,098 LC/year	3,728 LC/year