Car comparison

BMW X6 M (E71) 4.4 V8vsMercedes-Benz GL (X166) AMG GL 63

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

New comparison

BMW X6 M (E71)

4.4 V8

555 hp4395 ccGasolineAWDAutomaticTurbochargedSUV2009-2012
VS

Mercedes-Benz GL (X166)

AMG GL 63

558 hp5461 ccGasolineAWDAutomaticTwin-turboSUV2012-2015

Comparison overview

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

Best choices

Mercedes-Benz GL (X166) AMG GL 63

  • Most powerful
    558 hp
    416 kW
  • Highest torque
    760 Nm
    561 lb-ft
  • Lowest combined fuel consumption
    12.3 L/100 km
    19.1 mpg US
    23.0 mpg UK
  • Lowest city consumption
    15.8 L/100 km
    14.9 mpg US
    17.9 mpg UK
  • Lowest highway consumption
    10.3 L/100 km
    22.8 mpg US
    27.4 mpg UK
  • Lowest CO2 emissions
    288 g/km
  • Best estimated range
    813 km
    505 mi
  • Largest trunk
    680 L
  • Best overall score
    83/100
  • Best economy score
    74/100
  • Best practicality score
    93/100

BMW X6 M (E71) 4.4 V8

  • Quickest 0-100 km/h
    4.7 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    2,305 kg
    5,082 lb
  • Best power-to-weight
    241 hp/t
    180 kW/t
    4.2 kg/hp
  • Best performance score
    79/100

Specification comparison

Specification comparison
ModelBMWX6 M (E71)4.4 V8Mercedes-BenzGL (X166)AMG GL 63
Power
555hp414kW
558hp416kW
Torque
680Nm502lb-ft
760Nm561lb-ft
Curb weight
2,305kg5,082lb
2,505kg5,523lb
Gross weight
2,905kg6,404lb
3,250kg7,165lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
61.6s99% target: 257 km/h / 160 mph
Calculated
78.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.7s
4.9s
0-200 km/h
16.6s
Calculated
19.2s
Calculated
0-60 mph
4.5s
Calculated
4.6s
Calculated
Fuel consumption
13.9L/100 km16.9mpg US20.3mpg UK
12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption city
19.3L/100 km12.2mpg US14.6mpg UK
15.8L/100 km14.9mpg US17.9mpg UK
Fuel consumption highway
10.8L/100 km21.8mpg US26.2mpg UK
10.3L/100 km22.8mpg US27.4mpg UK
Quarter mile
12.8s
Calculated
13.1s
Calculated
Power-to-weight
241hp/t180kW/t109hp/1000 lb
Calculated
223hp/t166kW/t101hp/1000 lb
Calculated
Torque-to-weight
295Nm/t197lb-ft/ton
Calculated
303Nm/t203lb-ft/ton
Calculated
Estimated range
612km380mi
Calculated
813km505mi
Calculated
Displacement
4,395cc268cu in
5,461cc333cu in
Length
4,876mm192in
5,141mm202in
Width
1,983mm78in
1,982mm78in
Height
1,684mm66in
1,850mm73in
Wheelbase
2,933mm115in
3,075mm121in
Front track
1,660mm65in
1,677mm66in
Rear track
1,672mm66in
1,696mm67in
Trunk volume
570L
680L
Max trunk volume
1,450L
2,300L
Doors
5
5
Seats
4
7
Fuel tank
85L
100L
CO2 emissions
325g/km
288g/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 M (E71) 4.4 V8Mercedes-Benz GL (X166) AMG GL 63PowerTorque
  • BMW X6 M (E71) 4.4 V8: Power / Torque
  • Mercedes-Benz GL (X166) AMG GL 63: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWX6 M (E71)4.4 V86,000 rpm1,500-5,650 rpm6,250 rpm
Mercedes-BenzGL (X166)AMG GL 635,250-5,750 rpm2,000-5,000 rpm6,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWX6 M (E71)4.4 V8Mercedes-BenzGL (X166)AMG GL 63
Acceleration checkpoints
0-60 mph
0-97 km/h
4.5 s
4.6 s
0-100 km/h
0-62 mph
4.7 s
4.9 s
0-200 km/h
0-124 mph
16.6 s
19.2 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.4 s
8.5 s
1000 ft
305 m
10.8 s
11.0 s
1/4 mile
402 m
12.8 s
13.1 s
Trap speed
1/4 mile
402 m
179 km/h
111 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
BMWX6 M (E71)4.4 V8
555 hp
414 kW
Mercedes-BenzGL (X166)AMG GL 63
558 hp
416 kW

Mercedes-Benz GL (X166) AMG GL 63 has 3 hp more than BMW X6 M (E71) 4.4 V8.

The biggest power difference is between BMW X6 M (E71) 4.4 V8 and Mercedes-Benz GL (X166) AMG GL 63: 3 hp (2 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWX6 M (E71)4.4 V8
680 Nm
502 lb-ft
Mercedes-BenzGL (X166)AMG GL 63
760 Nm
561 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWX6 M (E71)4.4 V8
2,305 kg
5,082 lb
Mercedes-BenzGL (X166)AMG GL 63
2,505 kg
5,523 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 M (E71)4.4 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzGL (X166)AMG GL 63
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
BMWX6 M (E71)4.4 V84.7 s
Mercedes-BenzGL (X166)AMG GL 634.9 s

Although Mercedes-Benz GL (X166) AMG GL 63 has more power, BMW X6 M (E71) 4.4 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW X6 M (E71) 4.4 V8 and Mercedes-Benz GL (X166) AMG GL 63: 0.2 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 M (E71)4.4 V8
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Mercedes-BenzGL (X166)AMG GL 63
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz GL (X166) AMG GL 63 and BMW X6 M (E71) 4.4 V8: 1.6 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 M (E71)4.4 V8
241 hp/t
180 kW/t
4.2 kg/hp
Mercedes-BenzGL (X166)AMG GL 63
223 hp/t
166 kW/t
4.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWX6 M (E71)4.4 V8
612 km
380 mi
Mercedes-BenzGL (X166)AMG GL 63
813 km
505 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWX6 M (E71)4.4 V8
555 hp
414 kW
4.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzGL (X166)AMG GL 63
558 hp
416 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.

Chart data table
VehiclePerformance scorePracticality score
BMWX6 M (E71)4.4 V8
Power
555 hp
414 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
4 seats
Trunk
570 L
20.1 cu ft
Length
4,876 mm
192.0 in
Height
1,684 mm
66.3 in
Mercedes-BenzGL (X166)AMG GL 63
Power
558 hp
416 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
7 seats
Trunk
680 L
24.0 cu ft
Length
5,141 mm
202.4 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.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
BMWX6 M (E71)4.4 V8
Power
555 hp
414 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Mercedes-BenzGL (X166)AMG GL 63
Power
558 hp
416 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

Mercedes-Benz GL (X166) AMG GL 63 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 M (E71)4.4 V8
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
4.7 s
Mercedes-BenzGL (X166)AMG GL 63
12.3 L/100 km
19.1 mpg US
23.0 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
BMWX6 M (E71)4.4 V8
241 hp/t
180 kW/t
4.2 kg/hp
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Mercedes-BenzGL (X166)AMG GL 63
223 hp/t
166 kW/t
4.5 kg/hp
12.3 L/100 km
19.1 mpg US
23.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWX6 M (E71)4.4 V8Mercedes-BenzGL (X166)AMG GL 63
Power
555 hp
414 kW
558 hp
416 kW
Torque
680 Nm
502 lb-ft
760 Nm
561 lb-ft
Acceleration
4.7 s
4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,305 kg
5,082 lb
2,505 kg
5,523 lb
Fuel consumption
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
Practicality
Doors/seats
5 doors
4 seats
Trunk
570 L
20.1 cu ft
Length
4,876 mm
192.0 in
Height
1,684 mm
66.3 in
Doors/seats
5 doors
7 seats
Trunk
680 L
24.0 cu ft
Length
5,141 mm
202.4 in
Height
1,850 mm
72.8 in
Range score
612 km
380 mi
813 km
505 mi
CO2 score
325 g/km
288 g/km
Trunk score
570 L
20.1 cu ft
680 L
24.0 cu ft
Power-to-weight score
241 hp/t
180 kW/t
4.2 kg/hp
223 hp/t
166 kW/t
4.5 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 M (E71) 4.4 V8Mercedes-Benz GL (X166) AMG GL 63
Consumption13.9 L/100 km16.9 mpg US20.3 mpg UK12.3 L/100 km19.1 mpg US23 mpg UK
Cost / 100 km24.33 LC100 km21.53 LC100 km
Cost / 100 mi39.15 LC100 mi34.64 LC100 mi
Annual fuel used2,085 L551 US gal459 UK gal1,845 L487 US gal406 UK gal
Annual fuel cost3,649 LC/year3,229 LC/year

Head-to-head comparisons

BMW X6 M (E71) 4.4 V8

  • Is 200 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 18 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

Mercedes-Benz GL (X166) AMG GL 63

  • Has 3 hp more
  • Has 80 Nm more
  • Uses 1.6 L/100 km less fuel
  • Has 201 km (125 mi) more estimated range
  • Has 110 L more trunk volume
  • Emits 37 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW X6 M (E71) 4.4 V8
Mercedes-Benz GL (X166) AMG GL 63
Compare selected cars
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