Car comparison

BMW X6 M (E71) 4.4 V8vsMercedes-Benz M-class (W164) · Facelift 2008 AMG ML 63 V8

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 M-class (W164) · Facelift 2008

AMG ML 63 V8

510 hp6208 ccGasolineAWDAutomaticNaturally aspiratedSUV2008-2010

Comparison overview

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

Best choices

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
  • Most powerful
    555 hp
    414 kW
  • Highest torque
    680 Nm
    502 lb-ft
  • Best power-to-weight
    241 hp/t
    180 kW/t
    4.2 kg/hp
  • Lowest combined fuel consumption
    13.9 L/100 km
    16.9 mpg US
    20.3 mpg UK
  • Lowest city consumption
    19.3 L/100 km
    12.2 mpg US
    14.6 mpg UK
  • Lowest highway consumption
    10.8 L/100 km
    21.8 mpg US
    26.2 mpg UK
  • Best estimated range
    612 km
    380 mi
  • Best performance score
    79/100
  • Best economy score
    70/100

Specification comparison

Specification comparison
ModelBMWX6 M (E71)4.4 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
555hp414kW
510hp380kW
Torque
680Nm502lb-ft
630Nm465lb-ft
Curb weight
2,305kg5,082lb
2,235kg4,927lb
Gross weight
2,905kg6,404lb
2,880kg6,349lb
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
77.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.7s
5.0s
0-200 km/h
16.6s
Calculated
19.3s
Calculated
0-60 mph
4.5s
Calculated
4.7s
Calculated
Fuel consumption
13.9L/100 km16.9mpg US20.3mpg UK
16.5L/100 km14.3mpg US17.1mpg UK
Fuel consumption city
19.3L/100 km12.2mpg US14.6mpg UK
24.1L/100 km9.8mpg US11.7mpg UK
Fuel consumption highway
10.8L/100 km21.8mpg US26.2mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Quarter mile
12.8s
Calculated
13.2s
Calculated
Power-to-weight
241hp/t180kW/t109hp/1000 lb
Calculated
228hp/t170kW/t104hp/1000 lb
Calculated
Torque-to-weight
295Nm/t197lb-ft/ton
Calculated
282Nm/t189lb-ft/ton
Calculated
Estimated range
612km380mi
Calculated
576km358mi
Calculated
Displacement
4,395cc268cu in
6,208cc379cu in
Length
4,876mm192in
4,812mm189in
Width
1,983mm78in
2,124mm84in
Height
1,684mm66in
1,899mm75in
Wheelbase
2,933mm115in
2,915mm115in
Front track
1,660mm65in
-
Rear track
1,672mm66in
-
Ground clearance-
234mm9in
Trunk volume
570L
833L
Max trunk volume
1,450L
2,050L
Doors
5
5
Seats
4
5
Fuel tank
85L
95L
CO2 emissions
325g/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 M-class (W164) Facelift 2008 AMG ML 63 V8PowerTorque
  • BMW X6 M (E71) 4.4 V8: Power / Torque
  • Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8: 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-BenzM-class (W164)Facelift 2008AMG ML 63 V86,800 rpm5,200 rpm7,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWX6 M (E71)4.4 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.5 s
4.7 s
0-100 km/h
0-62 mph
4.7 s
5.0 s
0-200 km/h
0-124 mph
16.6 s
19.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
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
8.6 s
1000 ft
305 m
10.8 s
11.1 s
1/4 mile
402 m
12.8 s
13.2 s
Trap speed
1/4 mile
402 m
179 km/h
111 mph
171 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
510 hp
380 kW

BMW X6 M (E71) 4.4 V8 has 45 hp more than Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8.

The biggest power difference is between Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8 and BMW X6 M (E71) 4.4 V8: 45 hp (34 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
630 Nm
465 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
2,235 kg
4,927 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-BenzM-class (W164)Facelift 2008AMG ML 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
BMWX6 M (E71)4.4 V84.7 s
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V85.0 s

The biggest 0-100 km/h difference is between BMW X6 M (E71) 4.4 V8 and Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8: 0.3 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

The biggest fuel consumption difference is between BMW X6 M (E71) 4.4 V8 and Mercedes-Benz M-class (W164) Facelift 2008 AMG ML 63 V8: 2.6 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
228 hp/t
170 kW/t
4.4 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
576 km
358 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
510 hp
380 kW
5.0 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
510 hp
380 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
833 L
29.4 cu ft
Length
4,812 mm
189.4 in
Height
1,899 mm
74.8 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
510 hp
380 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

BMW X6 M (E71) 4.4 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
BMWX6 M (E71)4.4 V8
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
4.7 s
Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
16.5 L/100 km
14.3 mpg US
17.1 mpg UK
5.0 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-BenzM-class (W164)Facelift 2008AMG ML 63 V8
228 hp/t
170 kW/t
4.4 kg/hp
16.5 L/100 km
14.3 mpg US
17.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWX6 M (E71)4.4 V8Mercedes-BenzM-class (W164)Facelift 2008AMG ML 63 V8
Power
555 hp
414 kW
510 hp
380 kW
Torque
680 Nm
502 lb-ft
630 Nm
465 lb-ft
Acceleration
4.7 s
5.0 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
2,235 kg
4,927 lb
Fuel consumption
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
16.5 L/100 km
14.3 mpg US
17.1 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
5 seats
Trunk
833 L
29.4 cu ft
Length
4,812 mm
189.4 in
Height
1,899 mm
74.8 in
Range score
612 km
380 mi
576 km
358 mi
CO2 score
325 g/km
-
Trunk score
570 L
20.1 cu ft
833 L
29.4 cu ft
Power-to-weight score
241 hp/t
180 kW/t
4.2 kg/hp
228 hp/t
170 kW/t
4.4 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 M-class (W164) Facelift 2008 AMG ML 63 V8
Consumption13.9 L/100 km16.9 mpg US20.3 mpg UK16.5 L/100 km14.3 mpg US17.1 mpg UK
Cost / 100 km24.33 LC100 km28.88 LC100 km
Cost / 100 mi39.15 LC100 mi46.47 LC100 mi
Annual fuel used2,085 L551 US gal459 UK gal2,475 L654 US gal544 UK gal
Annual fuel cost3,649 LC/year4,331 LC/year

Head-to-head comparisons

BMW X6 M (E71) 4.4 V8

  • Has 45 hp more
  • Has 50 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 2.6 L/100 km less fuel
  • Has 13 hp/t better power-to-weight
  • Has 36 km (22 mi) more estimated range

Pros

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

Cons

  • Heaviest
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW X6 M (E71) 4.4 V8
Mercedes-Benz M-class (W164) AMG ML 63 V8
Compare selected cars
2 vehicles selected

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