Car comparison

Bentley Bentayga 4.0 diesel V8vsMercedes-Benz GLS (X166) GLS 500

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

New comparison

Bentley Bentayga

4.0 diesel V8

435 hp3996 ccDieselAWDAutomaticTwin-turboSUV2017-2020

Mercedes-Benz GLS (X166)

GLS 500

456 hp4663 ccGasolineAWDAutomaticTwin-turboSUV2015-2019

Comparison overview

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

Bentley Bentayga 4.0 diesel V8

Quickest 0-100 km/h
4.8 s
Fastest top speed
270 km/h
168 mph
Highest torque
900 Nm
664 lb-ft
Lowest combined fuel consumption
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
Lowest city consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
Lowest highway consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Lowest CO2 emissions
210 g/km
Best estimated range
1,076 km
669 mi
Best performance score
78/100
Best economy score
86/100

Mercedes-Benz GLS (X166) GLS 500

Most powerful
456 hp
340 kW
Lightest
2,370 kg
5,225 lb
Best power-to-weight
192 hp/t
143 kW/t
5.2 kg/hp
Largest trunk
680 L
Best overall score
81/100
Best practicality score
93/100

Specification comparison

Specification comparison
Model	BentleyBentayga4.0 diesel V8	Mercedes-BenzGLS (X166)GLS 500
Power	435hp324kW	456hp340kW
Torque	900Nm664lb-ft	700Nm516lb-ft
Curb weight	2,505kg5,523lb	2,370kg5,225lb
Gross weight	3,250kg7,165lb	3,250kg7,165lb
Top speed	270 km/h 168 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	75.9s99% target: 267 km/h / 166 mph Calculated	75.3s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	4.8s	5.3s
0-200 km/h	17.4s Calculated	19.5s Calculated
0-60 mph	4.6s Calculated	5.0s Calculated
Fuel consumption	7.9L/100 km29.8mpg US35.8mpg UK	11.3L/100 km20.8mpg US25.0mpg UK
Fuel consumption city	9L/100 km26.1mpg US31.4mpg UK	14.9L/100 km15.8mpg US19.0mpg UK
Fuel consumption highway	7.4L/100 km31.8mpg US38.2mpg UK	9.2L/100 km25.6mpg US30.7mpg UK
Quarter mile	13.0s Calculated	13.5s Calculated
Power-to-weight	174hp/t129kW/t79hp/1000 lb Calculated	192hp/t143kW/t87hp/1000 lb Calculated
Torque-to-weight	359Nm/t240lb-ft/ton Calculated	295Nm/t198lb-ft/ton Calculated
Estimated range	1,076km669mi Calculated	885km550mi Calculated
Displacement	3,996cc244cu in	4,663cc285cu in
Length	5,140mm202in	5,130mm202in
Width	1,998mm79in	1,934mm76in
Height	1,722mm68in	1,850mm73in
Wheelbase	2,995mm118in	3,075mm121in
Front track	-	1,655mm65in
Rear track	-	1,675mm66in
Trunk volume	431L	680L
Max trunk volume	1,774L	2,300L
Doors	5	5
Seats	4	5
Fuel tank	85L	100L
CO2 emissions	210g/km	264g/km

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 4.0 diesel V8Mercedes-Benz GLS (X166) GLS 500PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BentleyBentayga4.0 diesel V8	3,750-5,000 rpm	1,000-3,250 rpm	5,250 rpm
Mercedes-BenzGLS (X166)GLS 500	5,250-5,500 rpm	1,800-4,000 rpm	5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BentleyBentayga4.0 diesel V8	Mercedes-BenzGLS (X166)GLS 500
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.6 s	5.0 s
0-100 km/h 0-62 mph	4.8 s	5.3 s
0-200 km/h 0-124 mph	17.4 s	19.5 s
Top speed	270 km/h 168 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.1 s	2.2 s
330 ft 101 m	5.6 s	5.8 s
1/8 mile 201 m	8.4 s	8.8 s
1000 ft 305 m	10.9 s	11.3 s
1/4 mile 402 m	13.0 s	13.5 s
Trap speed 1/4 mile 402 m	176 km/h 110 mph	171 km/h 106 mph

Power comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	435 hp 324 kW
Mercedes-BenzGLS (X166)GLS 500	456 hp 340 kW

Mercedes-Benz GLS (X166) GLS 500 has 21 hp more than Bentley Bentayga 4.0 diesel V8.

The biggest power difference is between Bentley Bentayga 4.0 diesel V8 and Mercedes-Benz GLS (X166) GLS 500: 21 hp (16 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	900 Nm 664 lb-ft
Mercedes-BenzGLS (X166)GLS 500	700 Nm 516 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	2,505 kg 5,523 lb
Mercedes-BenzGLS (X166)GLS 500	2,370 kg 5,225 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
BentleyBentayga4.0 diesel V8	270 km/h 168 mph
Mercedes-BenzGLS (X166)GLS 500	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
BentleyBentayga4.0 diesel V8	4.8 s
Mercedes-BenzGLS (X166)GLS 500	5.3 s

Although Mercedes-Benz GLS (X166) GLS 500 has more power, Bentley Bentayga 4.0 diesel V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Bentley Bentayga 4.0 diesel V8 and Mercedes-Benz GLS (X166) GLS 500: 0.5 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
BentleyBentayga4.0 diesel V8	7.9 L/100 km 29.8 mpg US 35.8 mpg UK
Mercedes-BenzGLS (X166)GLS 500	11.3 L/100 km 20.8 mpg US 25.0 mpg UK

The biggest fuel consumption difference is between Bentley Bentayga 4.0 diesel V8 and Mercedes-Benz GLS (X166) GLS 500: 3.4 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
BentleyBentayga4.0 diesel V8	174 hp/t 129 kW/t 5.8 kg/hp
Mercedes-BenzGLS (X166)GLS 500	192 hp/t 143 kW/t 5.2 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BentleyBentayga4.0 diesel V8	1,076 km 669 mi
Mercedes-BenzGLS (X166)GLS 500	885 km 550 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BentleyBentayga4.0 diesel V8	435 hp 324 kW	4.8 s	270 km/h 168 mph
Mercedes-BenzGLS (X166)GLS 500	456 hp 340 kW	5.3 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

BentleyBentayga4.0 diesel V8

Power	435 hp 324 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

Doors/seats	5 doors 4 seats
Trunk	431 L 15.2 cu ft
Length	5,140 mm 202.4 in
Height	1,722 mm 67.8 in

Mercedes-BenzGLS (X166)GLS 500

Power	456 hp 340 kW
0-100 km/h	5.3 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	5 doors 5 seats
Trunk	680 L 24.0 cu ft
Length	5,130 mm 202.0 in
Height	1,850 mm 72.8 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

BentleyBentayga4.0 diesel V8

Power	435 hp 324 kW
0-100 km/h	4.8 s
Top speed 270 km/h 168 mph

7.9 L/100 km

29.8 mpg US

35.8 mpg UK

Mercedes-BenzGLS (X166)GLS 500

Power	456 hp 340 kW
0-100 km/h	5.3 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

11.3 L/100 km

20.8 mpg US

25.0 mpg UK

Bentley Bentayga 4.0 diesel 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
BentleyBentayga4.0 diesel V8	7.9 L/100 km 29.8 mpg US 35.8 mpg UK	4.8 s
Mercedes-BenzGLS (X166)GLS 500	11.3 L/100 km 20.8 mpg US 25.0 mpg UK	5.3 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
BentleyBentayga4.0 diesel V8	174 hp/t 129 kW/t 5.8 kg/hp	7.9 L/100 km 29.8 mpg US 35.8 mpg UK
Mercedes-BenzGLS (X166)GLS 500	192 hp/t 143 kW/t 5.2 kg/hp	11.3 L/100 km 20.8 mpg US 25.0 mpg UK

Detailed score breakdown

Vehicle

BentleyBentayga4.0 diesel V8

Mercedes-BenzGLS (X166)GLS 500

Power

435 hp

324 kW

456 hp

340 kW

Torque

900 Nm

664 lb-ft

700 Nm

516 lb-ft

Acceleration

4.8 s

5.3 s

Top speed

270 km/h

168 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

2,505 kg

5,523 lb

2,370 kg

5,225 lb

Fuel consumption

7.9 L/100 km

29.8 mpg US

35.8 mpg UK

11.3 L/100 km

20.8 mpg US

25.0 mpg UK

Practicality

Doors/seats	5 doors 4 seats
Trunk	431 L 15.2 cu ft
Length	5,140 mm 202.4 in
Height	1,722 mm 67.8 in

Doors/seats	5 doors 5 seats
Trunk	680 L 24.0 cu ft
Length	5,130 mm 202.0 in
Height	1,850 mm 72.8 in

Range score

1,076 km

669 mi

885 km

550 mi

CO2 score

210 g/km

264 g/km

Trunk score

431 L

15.2 cu ft

680 L

24.0 cu ft

Power-to-weight score

174 hp/t

129 kW/t

5.8 kg/hp

192 hp/t

143 kW/t

5.2 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	Bentley Bentayga 4.0 diesel V8	Mercedes-Benz GLS (X166) GLS 500
Consumption	7.9 L/100 km29.8 mpg US35.8 mpg UK	11.3 L/100 km20.8 mpg US25 mpg UK
Cost / 100 km	13.83 LC100 km	19.78 LC100 km
Cost / 100 mi	22.25 LC100 mi	31.82 LC100 mi
Annual fuel used	1,185 L313 US gal261 UK gal	1,695 L448 US gal373 UK gal
Annual fuel cost	2,074 LC/year	2,966 LC/year