Car comparison

Bentley Bentayga · Facelift 2020 Speed 4.0 V8vsMercedes-Benz GLS (X167) · Facelift 2023 AMG GLS 63 V8

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

New comparison

Bentley Bentayga · Facelift 2020

Speed 4.0 V8

650 hp3996 ccGasolineAWDAutomaticTurbochargedSUV2025-present
VS

Mercedes-Benz GLS (X167) · Facelift 2023

AMG GLS 63 V8

612 hp3982 ccGasolineAWDAutomaticTurbochargedSUV2023-2026

Comparison overview

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

Best choices

Bentley Bentayga Facelift 2020 Speed 4.0 V8

  • Quickest 0-100 km/h
    3.6 s
  • Fastest top speed
    310 km/h
    193 mph
  • Most powerful
    650 hp
    485 kW
  • Highest torque
    850 Nm
    627 lb-ft
  • Lightest
    2,391 kg
    5,271 lb
  • Best power-to-weight
    272 hp/t
    203 kW/t
    3.7 kg/hp
  • Largest trunk
    484 L
  • Best overall score
    87/100
  • Best performance score
    88/100
  • Best practicality score
    85/100

Specification comparison

Specification comparison
ModelBentleyBentaygaFacelift 2020Speed 4.0 V8Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
Power
650hp485kW
612hp456kW
Torque
850Nm627lb-ft
850Nm627lb-ft
Curb weight
2,391kg5,271lb
2,625kg5,787lb
Gross weight
3,000kg6,614lb
3,395kg7,485lb
Top speed
310 km/h
193 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
55.1s99% target: 307 km/h / 191 mph
Calculated
57.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.6s
4.2s
0-200 km/h
10.6s
Calculated
15.2s
Calculated
0-60 mph
3.4s
Calculated
4.0s
Calculated
Fuel consumption
14.7L/100 km16mpg US19.2mpg UK
13.5L/100 km17.4mpg US20.9mpg UK
Fuel consumption city
16.8L/100 km14mpg US16.8mpg UK
-
Fuel consumption highway
11.2L/100 km21mpg US25.2mpg UK
-
Quarter mile
11.4s
Calculated
12.3s
Calculated
Power-to-weight
272hp/t203kW/t123hp/1000 lb
Calculated
233hp/t174kW/t106hp/1000 lb
Calculated
Torque-to-weight
355Nm/t238lb-ft/ton
Calculated
324Nm/t217lb-ft/ton
Calculated
Estimated range
578km359mi
Calculated
667km414mi
Calculated
Displacement
3,996cc244cu in
3,982cc243cu in
Length
5,144mm203in
5,233mm206in
Width
1,998mm79in
2,030mm80in
Height
1,728mm68in
1,836mm72in
Wheelbase
2,995mm118in
3,135mm123in
Front track
1,689mm66in
1,705mm67in
Rear track
1,707mm67in
1,725mm68in
Ground clearance-
250mm10in
Trunk volume
484L
355L
Max trunk volume-
2,400L
Doors
5
5
Seats
5
7
Fuel tank
85L
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.

Bentley Bentayga Facelift 2020 Speed 4.0 V8Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8PowerTorque
  • Bentley Bentayga Facelift 2020 Speed 4.0 V8: Power / Torque
  • Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BentleyBentaygaFacelift 2020Speed 4.0 V86,000 rpm2,250-4,500 rpm6,250 rpm
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V85,750-6,500 rpm2,500-4,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBentleyBentaygaFacelift 2020Speed 4.0 V8Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.4 s
4.0 s
0-100 km/h
0-62 mph
3.6 s
4.2 s
0-200 km/h
0-124 mph
10.6 s
15.2 s
Top speed
310 km/h
193 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
1.9 s
2.0 s
330 ft
101 m
5.0 s
5.3 s
1/8 mile
201 m
7.5 s
8.0 s
1000 ft
305 m
9.6 s
10.4 s
1/4 mile
402 m
11.4 s
12.3 s
Trap speed
1/4 mile
402 m
207 km/h
129 mph
184 km/h
114 mph

Power comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
650 hp
485 kW
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
612 hp
456 kW

Bentley Bentayga Facelift 2020 Speed 4.0 V8 has 38 hp more than Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8.

The biggest power difference is between Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8 and Bentley Bentayga Facelift 2020 Speed 4.0 V8: 38 hp (28 kW).

Torque comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
850 Nm
627 lb-ft
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
850 Nm
627 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
2,391 kg
5,271 lb
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
2,625 kg
5,787 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
310 km/h
193 mph
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 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
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V83.6 s
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V84.2 s

The biggest 0-100 km/h difference is between Bentley Bentayga Facelift 2020 Speed 4.0 V8 and Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8: 0.6 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8 and Bentley Bentayga Facelift 2020 Speed 4.0 V8: 1.2 L/100 km.

Power-to-weight comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
272 hp/t
203 kW/t
3.7 kg/hp
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
233 hp/t
174 kW/t
4.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BentleyBentaygaFacelift 2020Speed 4.0 V8
578 km
359 mi
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
667 km
414 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BentleyBentaygaFacelift 2020Speed 4.0 V8
650 hp
485 kW
3.6 s
310 km/h
193 mph
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
612 hp
456 kW
4.2 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.

Chart data table
VehiclePerformance scorePracticality score
BentleyBentaygaFacelift 2020Speed 4.0 V8
Power
650 hp
485 kW
0-100 km/h3.6 s
Top speed
310 km/h
193 mph
Doors/seats
5 doors
5 seats
Trunk
484 L
17.1 cu ft
Length
5,144 mm
202.5 in
Height
1,728 mm
68.0 in
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
Power
612 hp
456 kW
0-100 km/h4.2 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
5,233 mm
206.0 in
Height
1,836 mm
72.3 in

Performance vs fuel economy

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

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
BentleyBentaygaFacelift 2020Speed 4.0 V8
Power
650 hp
485 kW
0-100 km/h3.6 s
Top speed
310 km/h
193 mph
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
Power
612 hp
456 kW
0-100 km/h4.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8 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
VehicleFuel consumption, L/100 km0-100 km/h, s
BentleyBentaygaFacelift 2020Speed 4.0 V8
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
3.6 s
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
4.2 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
BentleyBentaygaFacelift 2020Speed 4.0 V8
272 hp/t
203 kW/t
3.7 kg/hp
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
233 hp/t
174 kW/t
4.3 kg/hp
13.5 L/100 km
17.4 mpg US
20.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBentleyBentaygaFacelift 2020Speed 4.0 V8Mercedes-BenzGLS (X167)Facelift 2023AMG GLS 63 V8
Power
650 hp
485 kW
612 hp
456 kW
Torque
850 Nm
627 lb-ft
850 Nm
627 lb-ft
Acceleration
3.6 s
4.2 s
Top speed
310 km/h
193 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,391 kg
5,271 lb
2,625 kg
5,787 lb
Fuel consumption
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
13.5 L/100 km
17.4 mpg US
20.9 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
484 L
17.1 cu ft
Length
5,144 mm
202.5 in
Height
1,728 mm
68.0 in
Doors/seats
5 doors
7 seats
Trunk
355 L
12.5 cu ft
Length
5,233 mm
206.0 in
Height
1,836 mm
72.3 in
Range score
578 km
359 mi
667 km
414 mi
Trunk score
484 L
17.1 cu ft
355 L
12.5 cu ft
Power-to-weight score
272 hp/t
203 kW/t
3.7 kg/hp
233 hp/t
174 kW/t
4.3 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

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

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
VehicleBentley Bentayga Facelift 2020 Speed 4.0 V8Mercedes-Benz GLS (X167) Facelift 2023 AMG GLS 63 V8
Consumption14.7 L/100 km16 mpg US19.2 mpg UK13.5 L/100 km17.4 mpg US20.9 mpg UK
Cost / 100 km25.72 LC100 km23.63 LC100 km
Cost / 100 mi41.40 LC100 mi38.02 LC100 mi
Annual fuel used2,205 L582 US gal485 UK gal2,025 L535 US gal445 UK gal
Annual fuel cost3,859 LC/year3,544 LC/year

Head-to-head comparisons

Bentley Bentayga Facelift 2020 Speed 4.0 V8

  • Has 38 hp more
  • Is 234 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Has 50 km/h (31 mph) higher top speed
  • Has 39 hp/t better power-to-weight
  • Has 129 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption

Choose cars to compare

Brand
Model
Generation
Engine or modification
Bentley Bentayga Speed 4.0 V8
Mercedes-Benz GLS (X167) AMG GLS 63 V8
Compare selected cars
2 vehicles selected

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