Car comparison

BMW X6 (E71) 50ivsMercedes-Benz GL (X164) · Facelift 2009 GL 500

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

New comparison

BMW X6 (E71)

50i

407 hp4395 ccGasolineAWDAutomaticTurbochargedSUV2010-2012
VS

Mercedes-Benz GL (X164) · Facelift 2009

GL 500

388 hp5461 ccGasolineAWDAutomaticNaturally aspiratedSUV2009-2012

Comparison overview

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

Best choices

BMW X6 (E71) 50i

  • Quickest 0-100 km/h
    5.4 s
  • Fastest top speed
    250 km/h
    155 mph Unrestricted
    240 km/h
    149 mph Restricted
  • Most powerful
    407 hp
    304 kW
  • Highest torque
    600 Nm
    443 lb-ft
  • Lightest
    2,190 kg
    4,828 lb
  • Best power-to-weight
    186 hp/t
    139 kW/t
    5.4 kg/hp
  • Lowest combined fuel consumption
    12.5 L/100 km
    18.8 mpg US
    22.6 mpg UK
  • Lowest city consumption
    17.7 L/100 km
    13.3 mpg US
    16.0 mpg UK
  • Lowest highway consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest CO2 emissions
    292 g/km
  • Best overall score
    75/100
  • Best performance score
    71/100
  • Best economy score
    73/100

Specification comparison

Specification comparison
ModelBMWX6 (E71)50iMercedes-BenzGL (X164)Facelift 2009GL 500
Power
407hp304kW
388hp289kW
Torque
600Nm443lb-ft
530Nm391lb-ft
Curb weight
2,190kg4,828lb
2,370kg5,225lb
Gross weight
2,790kg6,151lb
3,150kg6,945lb
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
240 km/h
149 mph
To 99% top speed
73.4s99% target: 248 km/h / 154 mph
Calculated
93.9s99% target: 238 km/h / 148 mph
Calculated
0-100 km/h
5.4s
6.5s
0-200 km/h
21.1s
Calculated
29.0s
Calculated
0-60 mph
5.1s
Calculated
6.1s
Calculated
Fuel consumption
12.5L/100 km18.8mpg US22.6mpg UK
13.6L/100 km17.3mpg US20.8mpg UK
Fuel consumption city
17.7L/100 km13.3mpg US16.0mpg UK
18.8L/100 km12.5mpg US15.0mpg UK
Fuel consumption highway
9.6L/100 km24.5mpg US29.4mpg UK
10.6L/100 km22.2mpg US26.6mpg UK
Quarter mile
13.6s
Calculated
14.6s
Calculated
Power-to-weight
186hp/t139kW/t84hp/1000 lb
Calculated
164hp/t122kW/t74hp/1000 lb
Calculated
Torque-to-weight
274Nm/t183lb-ft/ton
Calculated
224Nm/t150lb-ft/ton
Calculated
Estimated range
680km423mi
Calculated
735km457mi
Calculated
Displacement
4,395cc268cu in
5,461cc333cu in
Length
4,877mm192in
5,099mm201in
Width
1,983mm78in
1,920mm76in
Height
1,690mm67in
1,840mm72in
Wheelbase
2,933mm115in
3,075mm121in
Front track
1,644mm65in
1,645mm65in
Rear track
1,706mm67in
1,648mm65in
Ground clearance
212mm8in
198mm8in
Trunk volume
570L
620L
Max trunk volume
1,450L
2,300L
Doors
5
5
Seats
4
7
Fuel tank
85L
100L
CO2 emissions
292g/km
317g/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.

BMW X6 (E71) 50iMercedes-Benz GL (X164) Facelift 2009 GL 500PowerTorque
  • BMW X6 (E71) 50i: Power / Torque
  • Mercedes-Benz GL (X164) Facelift 2009 GL 500: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWX6 (E71)50i5,500-6,400 rpm1,750-4,500 rpm6,650 rpm
Mercedes-BenzGL (X164)Facelift 2009GL 5006,000 rpm2,800-4,800 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWX6 (E71)50iMercedes-BenzGL (X164)Facelift 2009GL 500
Acceleration checkpoints
0-60 mph
0-97 km/h
5.1 s
6.1 s
0-100 km/h
0-62 mph
5.4 s
6.5 s
0-200 km/h
0-124 mph
21.1 s
29.0 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
240 km/h
149 mph
Drag race simulation
60 ft
18 m
2.2 s
2.3 s
330 ft
101 m
5.9 s
6.2 s
1/8 mile
201 m
8.8 s
9.5 s
1000 ft
305 m
11.4 s
12.3 s
1/4 mile
402 m
13.6 s
14.6 s
Trap speed
1/4 mile
402 m
168 km/h
104 mph
155 km/h
96 mph

Power comparison

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

Chart data table
VehicleValue
BMWX6 (E71)50i
407 hp
304 kW
Mercedes-BenzGL (X164)Facelift 2009GL 500
388 hp
289 kW

BMW X6 (E71) 50i has 19 hp more than Mercedes-Benz GL (X164) Facelift 2009 GL 500.

The biggest power difference is between Mercedes-Benz GL (X164) Facelift 2009 GL 500 and BMW X6 (E71) 50i: 19 hp (14 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWX6 (E71)50i
600 Nm
443 lb-ft
Mercedes-BenzGL (X164)Facelift 2009GL 500
530 Nm
391 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWX6 (E71)50i
2,190 kg
4,828 lb
Mercedes-BenzGL (X164)Facelift 2009GL 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
VehicleValue
BMWX6 (E71)50i
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Mercedes-BenzGL (X164)Facelift 2009GL 500
240 km/h
149 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMWX6 (E71)50i5.4 s
Mercedes-BenzGL (X164)Facelift 2009GL 5006.5 s

The biggest 0-100 km/h difference is between BMW X6 (E71) 50i and Mercedes-Benz GL (X164) Facelift 2009 GL 500: 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
VehicleValue
BMWX6 (E71)50i
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Mercedes-BenzGL (X164)Facelift 2009GL 500
13.6 L/100 km
17.3 mpg US
20.8 mpg UK

The biggest fuel consumption difference is between BMW X6 (E71) 50i and Mercedes-Benz GL (X164) Facelift 2009 GL 500: 1.1 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
BMWX6 (E71)50i
186 hp/t
139 kW/t
5.4 kg/hp
Mercedes-BenzGL (X164)Facelift 2009GL 500
164 hp/t
122 kW/t
6.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWX6 (E71)50i
680 km
423 mi
Mercedes-BenzGL (X164)Facelift 2009GL 500
735 km
457 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWX6 (E71)50i
407 hp
304 kW
5.4 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Mercedes-BenzGL (X164)Facelift 2009GL 500
388 hp
289 kW
6.5 s
240 km/h
149 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
BMWX6 (E71)50i
Power
407 hp
304 kW
0-100 km/h5.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Doors/seats
5 doors
4 seats
Trunk
570 L
20.1 cu ft
Length
4,877 mm
192.0 in
Height
1,690 mm
66.5 in
Mercedes-BenzGL (X164)Facelift 2009GL 500
Power
388 hp
289 kW
0-100 km/h6.5 s
Top speed
240 km/h
149 mph
Doors/seats
5 doors
7 seats
Trunk
620 L
21.9 cu ft
Length
5,099 mm
200.7 in
Height
1,840 mm
72.4 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
BMWX6 (E71)50i
Power
407 hp
304 kW
0-100 km/h5.4 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Mercedes-BenzGL (X164)Facelift 2009GL 500
Power
388 hp
289 kW
0-100 km/h6.5 s
Top speed
240 km/h
149 mph
13.6 L/100 km
17.3 mpg US
20.8 mpg UK

BMW X6 (E71) 50i 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
BMWX6 (E71)50i
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
5.4 s
Mercedes-BenzGL (X164)Facelift 2009GL 500
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
6.5 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
BMWX6 (E71)50i
186 hp/t
139 kW/t
5.4 kg/hp
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Mercedes-BenzGL (X164)Facelift 2009GL 500
164 hp/t
122 kW/t
6.1 kg/hp
13.6 L/100 km
17.3 mpg US
20.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWX6 (E71)50iMercedes-BenzGL (X164)Facelift 2009GL 500
Power
407 hp
304 kW
388 hp
289 kW
Torque
600 Nm
443 lb-ft
530 Nm
391 lb-ft
Acceleration
5.4 s
6.5 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
240 km/h
149 mph
Lightness
2,190 kg
4,828 lb
2,370 kg
5,225 lb
Fuel consumption
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
13.6 L/100 km
17.3 mpg US
20.8 mpg UK
Practicality
Doors/seats
5 doors
4 seats
Trunk
570 L
20.1 cu ft
Length
4,877 mm
192.0 in
Height
1,690 mm
66.5 in
Doors/seats
5 doors
7 seats
Trunk
620 L
21.9 cu ft
Length
5,099 mm
200.7 in
Height
1,840 mm
72.4 in
Range score
680 km
423 mi
735 km
457 mi
CO2 score
292 g/km
317 g/km
Trunk score
570 L
20.1 cu ft
620 L
21.9 cu ft
Power-to-weight score
186 hp/t
139 kW/t
5.4 kg/hp
164 hp/t
122 kW/t
6.1 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
VehicleBMW X6 (E71) 50iMercedes-Benz GL (X164) Facelift 2009 GL 500
Consumption12.5 L/100 km18.8 mpg US22.6 mpg UK13.6 L/100 km17.3 mpg US20.8 mpg UK
Cost / 100 km21.88 LC100 km23.80 LC100 km
Cost / 100 mi35.20 LC100 mi38.30 LC100 mi
Annual fuel used1,875 L495 US gal412 UK gal2,040 L539 US gal449 UK gal
Annual fuel cost3,281 LC/year3,570 LC/year

Head-to-head comparisons

BMW X6 (E71) 50i

  • Has 19 hp more
  • Has 70 Nm more
  • Is 180 kg lighter
  • Is 1.1 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Uses 1.1 L/100 km less fuel
  • Has 22 hp/t better power-to-weight
  • Emits 25 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Smallest trunk

Mercedes-Benz GL (X164) Facelift 2009 GL 500

  • Has 55 km (34 mi) more estimated range
  • Has 50 L more trunk volume

Pros

  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW X6 (E71) 50i
Mercedes-Benz GL (X164) GL 500
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