Car comparison

Mercedes-Benz M-class (W166) ML 500 V8vsBMW X6 (E71) 50i

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

New comparison

Mercedes-Benz M-class (W166)

ML 500 V8

408 hp4663 ccGasolineAWDAutomaticTwin-turboSUV2012-2015
VS

BMW X6 (E71)

50i

407 hp4395 ccGasolineAWDAutomaticTurbochargedSUV2010-2012

Comparison overview

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

Best choices

Mercedes-Benz M-class (W166) ML 500 V8

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    408 hp
    304 kW
  • Highest torque
    600 Nm
    443 lb-ft
  • Lowest combined fuel consumption
    11.5 L/100 km
    20.5 mpg US
    24.6 mpg UK
  • Lowest city consumption
    15.2 L/100 km
    15.5 mpg US
    18.6 mpg UK
  • Lowest highway consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest CO2 emissions
    269 g/km
  • Best estimated range
    809 km
    503 mi
  • Largest trunk
    690 L
  • Best overall score
    77/100
  • Best economy score
    76/100
  • Best practicality score
    92/100

BMW X6 (E71) 50i

  • Quickest 0-100 km/h
    5.4 s
  • Lightest
    2,190 kg
    4,828 lb
  • Best power-to-weight
    186 hp/t
    139 kW/t
    5.4 kg/hp
  • Best performance score
    71/100

Specification comparison

Specification comparison
ModelMercedes-BenzM-class (W166)ML 500 V8BMWX6 (E71)50i
Power
408hp304kW
407hp304kW
Torque
600Nm443lb-ft
600Nm443lb-ft
Curb weight
2,235kg4,927lb
2,190kg4,828lb
Gross weight
2,950kg6,504lb
2,790kg6,151lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
86.9s99% target: 257 km/h / 160 mph
Calculated
73.4s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.6s
5.4s
0-200 km/h
21.5s
Calculated
21.1s
Calculated
0-60 mph
5.3s
Calculated
5.1s
Calculated
Fuel consumption
11.5L/100 km20.5mpg US24.6mpg UK
12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption city
15.2L/100 km15.5mpg US18.6mpg UK
17.7L/100 km13.3mpg US16.0mpg UK
Fuel consumption highway
9.5L/100 km24.8mpg US29.7mpg UK
9.6L/100 km24.5mpg US29.4mpg UK
Quarter mile
13.8s
Calculated
13.6s
Calculated
Power-to-weight
183hp/t136kW/t83hp/1000 lb
Calculated
186hp/t139kW/t84hp/1000 lb
Calculated
Torque-to-weight
268Nm/t180lb-ft/ton
Calculated
274Nm/t183lb-ft/ton
Calculated
Estimated range
809km503mi
Calculated
680km423mi
Calculated
Displacement
4,663cc285cu in
4,395cc268cu in
Length
4,804mm189in
4,877mm192in
Width
1,926mm76in
1,983mm78in
Height
1,796mm71in
1,690mm67in
Wheelbase
2,915mm115in
2,933mm115in
Front track
1,648mm65in
1,644mm65in
Rear track
1,663mm65in
1,706mm67in
Ground clearance-
212mm8in
Trunk volume
690L
570L
Max trunk volume
2,010L
1,450L
Doors
5
5
Seats
5
4
Fuel tank
93L
85L
CO2 emissions
269g/km
292g/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.

Mercedes-Benz M-class (W166) ML 500 V8BMW X6 (E71) 50iPowerTorque
  • Mercedes-Benz M-class (W166) ML 500 V8: Power / Torque
  • BMW X6 (E71) 50i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzM-class (W166)ML 500 V85,000-5,750 rpm1,600-4,750 rpm6,000 rpm
BMWX6 (E71)50i5,500-6,400 rpm1,750-4,500 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzM-class (W166)ML 500 V8BMWX6 (E71)50i
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
5.1 s
0-100 km/h
0-62 mph
5.6 s
5.4 s
0-200 km/h
0-124 mph
21.5 s
21.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.9 s
5.9 s
1/8 mile
201 m
9.0 s
8.8 s
1000 ft
305 m
11.6 s
11.4 s
1/4 mile
402 m
13.8 s
13.6 s
Trap speed
1/4 mile
402 m
166 km/h
103 mph
168 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V8
408 hp
304 kW
BMWX6 (E71)50i
407 hp
304 kW

Mercedes-Benz M-class (W166) ML 500 V8 has 1 hp more than BMW X6 (E71) 50i.

The biggest power difference is between BMW X6 (E71) 50i and Mercedes-Benz M-class (W166) ML 500 V8: 1 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V8
600 Nm
443 lb-ft
BMWX6 (E71)50i
600 Nm
443 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V8
2,235 kg
4,927 lb
BMWX6 (E71)50i
2,190 kg
4,828 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX6 (E71)50i
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V85.6 s
BMWX6 (E71)50i5.4 s

Although Mercedes-Benz M-class (W166) ML 500 V8 has more power, BMW X6 (E71) 50i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW X6 (E71) 50i and Mercedes-Benz M-class (W166) ML 500 V8: 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
Mercedes-BenzM-class (W166)ML 500 V8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
BMWX6 (E71)50i
12.5 L/100 km
18.8 mpg US
22.6 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz M-class (W166) ML 500 V8 and BMW X6 (E71) 50i: 1.0 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
Mercedes-BenzM-class (W166)ML 500 V8
183 hp/t
136 kW/t
5.5 kg/hp
BMWX6 (E71)50i
186 hp/t
139 kW/t
5.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzM-class (W166)ML 500 V8
809 km
503 mi
BMWX6 (E71)50i
680 km
423 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzM-class (W166)ML 500 V8
408 hp
304 kW
5.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX6 (E71)50i
407 hp
304 kW
5.4 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 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
Mercedes-BenzM-class (W166)ML 500 V8
Power
408 hp
304 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
690 L
24.4 cu ft
Length
4,804 mm
189.1 in
Height
1,796 mm
70.7 in
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

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
Mercedes-BenzM-class (W166)ML 500 V8
Power
408 hp
304 kW
0-100 km/h5.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
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-Benz M-class (W166) ML 500 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
Mercedes-BenzM-class (W166)ML 500 V8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
5.6 s
BMWX6 (E71)50i
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
5.4 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
Mercedes-BenzM-class (W166)ML 500 V8
183 hp/t
136 kW/t
5.5 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzM-class (W166)ML 500 V8BMWX6 (E71)50i
Power
408 hp
304 kW
407 hp
304 kW
Torque
600 Nm
443 lb-ft
600 Nm
443 lb-ft
Acceleration
5.6 s
5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Lightness
2,235 kg
4,927 lb
2,190 kg
4,828 lb
Fuel consumption
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
690 L
24.4 cu ft
Length
4,804 mm
189.1 in
Height
1,796 mm
70.7 in
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
Range score
809 km
503 mi
680 km
423 mi
CO2 score
269 g/km
292 g/km
Trunk score
690 L
24.4 cu ft
570 L
20.1 cu ft
Power-to-weight score
183 hp/t
136 kW/t
5.5 kg/hp
186 hp/t
139 kW/t
5.4 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
VehicleMercedes-Benz M-class (W166) ML 500 V8BMW X6 (E71) 50i
Consumption11.5 L/100 km20.5 mpg US24.6 mpg UK12.5 L/100 km18.8 mpg US22.6 mpg UK
Cost / 100 km20.13 LC100 km21.88 LC100 km
Cost / 100 mi32.39 LC100 mi35.20 LC100 mi
Annual fuel used1,725 L456 US gal379 UK gal1,875 L495 US gal412 UK gal
Annual fuel cost3,019 LC/year3,281 LC/year

Head-to-head comparisons

Mercedes-Benz M-class (W166) ML 500 V8

  • Has 1 hp more
  • Has 10 km/h (6 mph) higher top speed
  • Uses 1.0 L/100 km less fuel
  • Has 129 km (80 mi) more estimated range
  • Has 120 L more trunk volume
  • Emits 23 g/km less CO2

Pros

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

Cons

  • Slowest 0-100 km/h
  • Heaviest

BMW X6 (E71) 50i

  • Is 45 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 3 hp/t better power-to-weight

Pros

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

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz M-class (W166) ML 500 V8
BMW X6 (E71) 50i
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