Car comparison

Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8vsBMW X6 (E71) 50i

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

New comparison

Jeep Grand Cherokee IV (WK2)

SRT8 6.4 V8

477 hp6417 ccGasolineAWDAutomaticNaturally aspiratedSUV2011-2013
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

Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    257 km/h
    160 mph
  • Most powerful
    477 hp
    356 kW
  • Highest torque
    630 Nm
    465 lb-ft
  • Best power-to-weight
    204 hp/t
    152 kW/t
    4.9 kg/hp
  • Best overall score
    80/100
  • Best performance score
    75/100
  • Best practicality score
    90/100

BMW X6 (E71) 50i

  • Lightest
    2,190 kg
    4,828 lb
  • 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
  • Best estimated range
    680 km
    423 mi
  • Best economy score
    73/100

Specification comparison

Specification comparison
ModelJeepGrand Cherokee IV (WK2)SRT8 6.4 V8BMWX6 (E71)50i
Power
477hp356kW
407hp304kW
Torque
630Nm465lb-ft
600Nm443lb-ft
Curb weight
2,336kg5,150lb
2,190kg4,828lb
Gross weight
2,948kg6,499lb
2,790kg6,151lb
Top speed
257 km/h
160 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
74.5s99% target: 254 km/h / 158 mph
Calculated
73.4s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.0s
5.4s
0-200 km/h
19.3s
Calculated
21.1s
Calculated
0-60 mph
4.7s
Calculated
5.1s
Calculated
Fuel consumption
16.8L/100 km14mpg US16.8mpg UK
12.5L/100 km18.8mpg US22.6mpg UK
Fuel consumption city
19.6L/100 km12mpg US14.4mpg UK
17.7L/100 km13.3mpg US16.0mpg UK
Fuel consumption highway
13.1L/100 km18mpg US21.6mpg UK
9.6L/100 km24.5mpg US29.4mpg UK
Quarter mile
13.2s
Calculated
13.6s
Calculated
Power-to-weight
204hp/t152kW/t93hp/1000 lb
Calculated
186hp/t139kW/t84hp/1000 lb
Calculated
Torque-to-weight
270Nm/t180lb-ft/ton
Calculated
274Nm/t183lb-ft/ton
Calculated
Estimated range
554km344mi
Calculated
680km423mi
Calculated
Displacement
6,417cc392cu in
4,395cc268cu in
Length
4,859mm191in
4,877mm192in
Width
1,958mm77in
1,983mm78in
Height
1,756mm69in
1,690mm67in
Wheelbase
2,915mm115in
2,933mm115in
Front track
1,617mm64in
1,644mm65in
Rear track
1,633mm64in
1,706mm67in
Ground clearance
211mm8in
212mm8in
Trunk volume-
570L
Max trunk volume-
1,450L
Doors
5
5
Seats
5
4
Fuel tank
93L
85L
CO2 emissions-
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.

Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8BMW X6 (E71) 50iPowerTorque
  • Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8: Power / Torque
  • BMW X6 (E71) 50i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
JeepGrand Cherokee IV (WK2)SRT8 6.4 V86,000 rpm4,300 rpm6,250 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
MetricJeepGrand Cherokee IV (WK2)SRT8 6.4 V8BMWX6 (E71)50i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.1 s
0-100 km/h
0-62 mph
5.0 s
5.4 s
0-200 km/h
0-124 mph
19.3 s
21.1 s
Top speed
257 km/h
160 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.7 s
5.9 s
1/8 mile
201 m
8.6 s
8.8 s
1000 ft
305 m
11.1 s
11.4 s
1/4 mile
402 m
13.2 s
13.6 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
168 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
477 hp
356 kW
BMWX6 (E71)50i
407 hp
304 kW

Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8 has 70 hp more than BMW X6 (E71) 50i.

The biggest power difference is between BMW X6 (E71) 50i and Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8: 70 hp (52 kW).

Torque comparison

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

Chart data table
VehicleValue
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
630 Nm
465 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
2,336 kg
5,150 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
257 km/h
160 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V85.0 s
BMWX6 (E71)50i5.4 s

The biggest 0-100 km/h difference is between Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8 and BMW X6 (E71) 50i: 0.4 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
16.8 L/100 km
14.0 mpg US
16.8 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 BMW X6 (E71) 50i and Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8: 4.3 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
204 hp/t
152 kW/t
4.9 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
554 km
344 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
477 hp
356 kW
5.0 s
257 km/h
160 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
Power
477 hp
356 kW
0-100 km/h5.0 s
Top speed
257 km/h
160 mph
Doors/seats
5 doors
5 seats
Trunk-
Length
4,859 mm
191.3 in
Height
1,756 mm
69.1 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
Power
477 hp
356 kW
0-100 km/h5.0 s
Top speed
257 km/h
160 mph
16.8 L/100 km
14.0 mpg US
16.8 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

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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
16.8 L/100 km
14.0 mpg US
16.8 mpg UK
5.0 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
JeepGrand Cherokee IV (WK2)SRT8 6.4 V8
204 hp/t
152 kW/t
4.9 kg/hp
16.8 L/100 km
14.0 mpg US
16.8 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
VehicleJeepGrand Cherokee IV (WK2)SRT8 6.4 V8BMWX6 (E71)50i
Power
477 hp
356 kW
407 hp
304 kW
Torque
630 Nm
465 lb-ft
600 Nm
443 lb-ft
Acceleration
5.0 s
5.4 s
Top speed
257 km/h
160 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Lightness
2,336 kg
5,150 lb
2,190 kg
4,828 lb
Fuel consumption
16.8 L/100 km
14.0 mpg US
16.8 mpg UK
12.5 L/100 km
18.8 mpg US
22.6 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk-
Length
4,859 mm
191.3 in
Height
1,756 mm
69.1 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
554 km
344 mi
680 km
423 mi
CO2 score
-
292 g/km
Trunk score
-
570 L
20.1 cu ft
Power-to-weight score
204 hp/t
152 kW/t
4.9 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
VehicleJeep Grand Cherokee IV (WK2) SRT8 6.4 V8BMW X6 (E71) 50i
Consumption16.8 L/100 km14 mpg US16.8 mpg UK12.5 L/100 km18.8 mpg US22.6 mpg UK
Cost / 100 km29.40 LC100 km21.88 LC100 km
Cost / 100 mi47.31 LC100 mi35.20 LC100 mi
Annual fuel used2,520 L666 US gal554 UK gal1,875 L495 US gal412 UK gal
Annual fuel cost4,410 LC/year3,281 LC/year

Head-to-head comparisons

Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8

  • Has 70 hp more
  • Has 30 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Has 7 km/h (4 mph) higher top speed
  • Has 18 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest

BMW X6 (E71) 50i

  • Is 146 kg lighter
  • Uses 4.3 L/100 km less fuel
  • Has 126 km (79 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Jeep Grand Cherokee IV (WK2) SRT8 6.4 V8
BMW X6 (E71) 50i
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2 vehicles selected

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