Car comparison

BMW 8 Series (G15) M850ivsBMW X6 M (F96) 4.4 V8

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

New comparison

BMW 8 Series (G15)

M850i

530 hp4395 ccGasolineAWDAutomaticTurbochargedCoupe2020-2022
VS

BMW X6 M (F96)

4.4 V8

600 hp4395 ccGasolineAWDAutomaticTurbocharged2019-2023

Comparison overview

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

Best choices

BMW 8 Series (G15) M850i

  • Quickest 0-100 km/h
    3.8 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    750 Nm
    553 lb-ft
  • Lightest
    1,930 kg
    4,255 lb
  • Best power-to-weight
    275 hp/t
    205 kW/t
    3.6 kg/hp
  • Lowest combined fuel consumption
    10.0 L/100 km
    23.5 mpg US
    28.2 mpg UK
  • Lowest city consumption
    14.0 L/100 km
    16.8 mpg US
    20.2 mpg UK
  • Lowest highway consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Best estimated range
    680 km
    423 mi
  • Best performance score
    86/100
  • Best economy score
    80/100

BMW X6 M (F96) 4.4 V8

  • Most powerful
    600 hp
    447 kW
  • Largest trunk
    580 L
  • Best overall score
    82/100
  • Best practicality score
    79/100

Specification comparison

Specification comparison
ModelBMW8 Series (G15)M850iBMWX6 M (F96)4.4 V8
Power
530hp395kW
600hp447kW
Torque
750Nm553lb-ft
750Nm553lb-ft
Curb weight
1,930kg4,255lb
2,295kg5,060lb
Gross weight
2,395kg5,280lb
3,000kg6,614lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
49.9s99% target: 262 km/h / 163 mph
Calculated
48.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.8s
3.9s
0-200 km/h
13.0s
Calculated
13.5s
0-60 mph
3.6s
Calculated
3.7s
Calculated
Fuel consumption
10L/100 km23.5mpg US28.2mpg UK
12.7L/100 km18.5mpg US22.2mpg UK
Fuel consumption city
14L/100 km16.8mpg US20.2mpg UK
17.5L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
10L/100 km23.5mpg US28.2mpg UK
Quarter mile
11.8s
Calculated
12.0s
Calculated
Power-to-weight
275hp/t205kW/t125hp/1000 lb
Calculated
261hp/t195kW/t119hp/1000 lb
Calculated
Torque-to-weight
389Nm/t260lb-ft/ton
Calculated
327Nm/t219lb-ft/ton
Calculated
Estimated range
680km423mi
Calculated
654km406mi
Calculated
Displacement
4,395cc268cu in
4,395cc268cu in
Length
4,851mm191in
4,941mm195in
Width
1,902mm75in
2,019mm79in
Height
1,346mm53in
1,692mm67in
Wheelbase
2,822mm111in
2,972mm117in
Front track
1,627mm64in
1,699mm67in
Rear track
1,642mm65in
1,688mm66in
Ground clearance
128mm5in
213mm8in
Trunk volume
420L
580L
Max trunk volume-
1,530L
Doors
2
5
Seats
4
5
Fuel tank
68L
83L
CO2 emissions-
289g/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 8 Series (G15) M850iBMW X6 M (F96) 4.4 V8PowerTorque
  • BMW 8 Series (G15) M850i: Power / Torque
  • BMW X6 M (F96) 4.4 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW8 Series (G15)M850i5,500-6,000 rpm1,800-4,600 rpm6,250 rpm
BMWX6 M (F96)4.4 V86,000 rpm1,800-5,600 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series (G15)M850iBMWX6 M (F96)4.4 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.6 s
3.7 s
0-100 km/h
0-62 mph
3.8 s
3.9 s
0-200 km/h
0-124 mph
13.0 s
13.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
1.9 s
2.0 s
330 ft
101 m
5.1 s
5.2 s
1/8 mile
201 m
7.7 s
7.8 s
1000 ft
305 m
9.9 s
10.0 s
1/4 mile
402 m
11.8 s
12.0 s
Trap speed
1/4 mile
402 m
192 km/h
119 mph
190 km/h
118 mph

Power comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
530 hp
395 kW
BMWX6 M (F96)4.4 V8
600 hp
447 kW

BMW X6 M (F96) 4.4 V8 has 70 hp more than BMW 8 Series (G15) M850i.

The biggest power difference is between BMW 8 Series (G15) M850i and BMW X6 M (F96) 4.4 V8: 70 hp (52 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
750 Nm
553 lb-ft
BMWX6 M (F96)4.4 V8
750 Nm
553 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
1,930 kg
4,255 lb
BMWX6 M (F96)4.4 V8
2,295 kg
5,060 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMWX6 M (F96)4.4 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
BMW8 Series (G15)M850i3.8 s
BMWX6 M (F96)4.4 V83.9 s

Although BMW X6 M (F96) 4.4 V8 has more power, BMW 8 Series (G15) M850i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 8 Series (G15) M850i and BMW X6 M (F96) 4.4 V8: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
BMWX6 M (F96)4.4 V8
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

The biggest fuel consumption difference is between BMW 8 Series (G15) M850i and BMW X6 M (F96) 4.4 V8: 2.7 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
BMW8 Series (G15)M850i
275 hp/t
205 kW/t
3.6 kg/hp
BMWX6 M (F96)4.4 V8
261 hp/t
195 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
680 km
423 mi
BMWX6 M (F96)4.4 V8
654 km
406 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW8 Series (G15)M850i
530 hp
395 kW
3.8 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMWX6 M (F96)4.4 V8
600 hp
447 kW
3.9 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
BMW8 Series (G15)M850i
Power
530 hp
395 kW
0-100 km/h3.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
420 L
14.8 cu ft
Length
4,851 mm
191.0 in
Height
1,346 mm
53.0 in
BMWX6 M (F96)4.4 V8
Power
600 hp
447 kW
0-100 km/h3.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
580 L
20.5 cu ft
Length
4,941 mm
194.5 in
Height
1,692 mm
66.6 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
BMW8 Series (G15)M850i
Power
530 hp
395 kW
0-100 km/h3.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
BMWX6 M (F96)4.4 V8
Power
600 hp
447 kW
0-100 km/h3.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

BMW 8 Series (G15) M850i 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
BMW8 Series (G15)M850i
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
3.8 s
BMWX6 M (F96)4.4 V8
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
3.9 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
BMW8 Series (G15)M850i
275 hp/t
205 kW/t
3.6 kg/hp
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
BMWX6 M (F96)4.4 V8
261 hp/t
195 kW/t
3.8 kg/hp
12.7 L/100 km
18.5 mpg US
22.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series (G15)M850iBMWX6 M (F96)4.4 V8
Power
530 hp
395 kW
600 hp
447 kW
Torque
750 Nm
553 lb-ft
750 Nm
553 lb-ft
Acceleration
3.8 s
3.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,930 kg
4,255 lb
2,295 kg
5,060 lb
Fuel consumption
10.0 L/100 km
23.5 mpg US
28.2 mpg UK
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
420 L
14.8 cu ft
Length
4,851 mm
191.0 in
Height
1,346 mm
53.0 in
Doors/seats
5 doors
5 seats
Trunk
580 L
20.5 cu ft
Length
4,941 mm
194.5 in
Height
1,692 mm
66.6 in
Range score
680 km
423 mi
654 km
406 mi
CO2 score
-
289 g/km
Trunk score
420 L
14.8 cu ft
580 L
20.5 cu ft
Power-to-weight score
275 hp/t
205 kW/t
3.6 kg/hp
261 hp/t
195 kW/t
3.8 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 8 Series (G15) M850iBMW X6 M (F96) 4.4 V8
Consumption10 L/100 km23.5 mpg US28.2 mpg UK12.7 L/100 km18.5 mpg US22.2 mpg UK
Cost / 100 km17.50 LC100 km22.22 LC100 km
Cost / 100 mi28.16 LC100 mi35.77 LC100 mi
Annual fuel used1,500 L396 US gal330 UK gal1,905 L503 US gal419 UK gal
Annual fuel cost2,625 LC/year3,334 LC/year

Head-to-head comparisons

BMW 8 Series (G15) M850i

  • Is 365 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Uses 2.7 L/100 km less fuel
  • Has 13 hp/t better power-to-weight
  • Has 26 km (16 mi) more estimated range

Pros

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

Cons

  • Lowest power
  • Smallest trunk

BMW X6 M (F96) 4.4 V8

  • Has 70 hp more
  • Has 160 L more trunk volume

Pros

  • Most powerful
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series (G15) M850i
BMW X6 M (F96) 4.4 V8
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