Car comparison

BMW 8 Series (G15) M850ivsBMW M4 (G82) Competition 3.0

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

New comparison

BMW 8 Series (G15)

M850i

530 hp4395 ccGasolineAWDAutomaticTurbochargedCoupe2018-2020
VS

BMW M4 (G82)

Competition 3.0

510 hp2993 ccGasolineRWDAutomaticTurbochargedCoupe2020-2024

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
    3.7 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    530 hp
    395 kW
  • Highest torque
    750 Nm
    553 lb-ft
  • Best estimated range
    648 km
    402 mi
  • Best overall score
    75/100
  • Best performance score
    86/100
  • Best economy score
    79/100

BMW M4 (G82) Competition 3.0

  • Lightest
    1,725 kg
    3,803 lb
  • Best power-to-weight
    296 hp/t
    220 kW/t
    3.4 kg/hp
  • Lowest combined fuel consumption
    10.2 L/100 km
    23.1 mpg US
    27.7 mpg UK
  • Largest trunk
    440 L
  • Best practicality score
    53/100

Specification comparison

Specification comparison
ModelBMW8 Series (G15)M850iBMWM4 (G82)Competition 3.0
Power
530hp395kW
510hp380kW
Torque
750Nm553lb-ft
650Nm479lb-ft
Curb weight
1,890kg4,167lb
1,725kg3,803lb
Gross weight
2,395kg5,280lb
2,155kg4,751lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
48.6s99% target: 262 km/h / 163 mph
Calculated
50.7s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
3.7s
3.9s
0-200 km/h
12.7s
Calculated
13.3s
Calculated
0-60 mph
3.5s
Calculated
3.7s
Calculated
Fuel consumption
10.5L/100 km22.4mpg US26.9mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Fuel consumption city-
14.6L/100 km16.1mpg US19.3mpg UK
Fuel consumption highway-
7.6L/100 km30.9mpg US37.2mpg UK
Quarter mile
11.7s
Calculated
11.9s
Calculated
Power-to-weight
280hp/t209kW/t127hp/1000 lb
Calculated
296hp/t220kW/t134hp/1000 lb
Calculated
Torque-to-weight
397Nm/t266lb-ft/ton
Calculated
377Nm/t252lb-ft/ton
Calculated
Estimated range
648km402mi
Calculated
578km359mi
Calculated
Displacement
4,395cc268cu in
2,993cc183cu in
Length
4,851mm191in
4,794mm189in
Width
1,902mm75in
1,887mm74in
Height
1,346mm53in
1,393mm55in
Wheelbase
2,822mm111in
2,857mm112in
Front track
1,627mm64in
1,617mm64in
Rear track
1,642mm65in
1,605mm63in
Ground clearance
128mm5in
120mm5in
Trunk volume
420L
440L
Doors
2
2
Seats
4
4
Fuel tank
68L
59L
CO2 emissions
240g/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 M4 (G82) Competition 3.0PowerTorque
  • BMW 8 Series (G15) M850i: Power / Torque
  • BMW M4 (G82) Competition 3.0: 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
BMWM4 (G82)Competition 3.06,250 rpm2,750-5,500 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series (G15)M850iBMWM4 (G82)Competition 3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.5 s
3.7 s
0-100 km/h
0-62 mph
3.7 s
3.9 s
0-200 km/h
0-124 mph
12.7 s
13.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
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
7.6 s
7.8 s
1000 ft
305 m
9.8 s
10.0 s
1/4 mile
402 m
11.7 s
11.9 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
191 km/h
119 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
BMWM4 (G82)Competition 3.0
510 hp
380 kW

BMW 8 Series (G15) M850i has 20 hp more than BMW M4 (G82) Competition 3.0.

The biggest power difference is between BMW M4 (G82) Competition 3.0 and BMW 8 Series (G15) M850i: 20 hp (15 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
BMWM4 (G82)Competition 3.0
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
1,890 kg
4,167 lb
BMWM4 (G82)Competition 3.0
1,725 kg
3,803 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
BMWM4 (G82)Competition 3.0
Unrestricted
265 km/h165 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)M850i3.7 s
BMWM4 (G82)Competition 3.03.9 s

The biggest 0-100 km/h difference is between BMW 8 Series (G15) M850i and BMW M4 (G82) Competition 3.0: 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
BMW8 Series (G15)M850i
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
BMWM4 (G82)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK

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
280 hp/t
209 kW/t
3.6 kg/hp
BMWM4 (G82)Competition 3.0
296 hp/t
220 kW/t
3.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)M850i
648 km
402 mi
BMWM4 (G82)Competition 3.0
578 km
359 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
3.7 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMWM4 (G82)Competition 3.0
510 hp
380 kW
3.9 s
Unrestricted
265 km/h165 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/h3.7 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
BMWM4 (G82)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
440 L
15.5 cu ft
Length
4,794 mm
188.7 in
Height
1,393 mm
54.8 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
BMW8 Series (G15)M850i
Power
530 hp
395 kW
0-100 km/h3.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
BMWM4 (G82)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
10.2 L/100 km
23.1 mpg US
27.7 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
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
3.7 s
BMWM4 (G82)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 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
280 hp/t
209 kW/t
3.6 kg/hp
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
BMWM4 (G82)Competition 3.0
296 hp/t
220 kW/t
3.4 kg/hp
10.2 L/100 km
23.1 mpg US
27.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series (G15)M850iBMWM4 (G82)Competition 3.0
Power
530 hp
395 kW
510 hp
380 kW
Torque
750 Nm
553 lb-ft
650 Nm
479 lb-ft
Acceleration
3.7 s
3.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,890 kg
4,167 lb
1,725 kg
3,803 lb
Fuel consumption
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
10.2 L/100 km
23.1 mpg US
27.7 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
2 doors
4 seats
Trunk
440 L
15.5 cu ft
Length
4,794 mm
188.7 in
Height
1,393 mm
54.8 in
Range score
648 km
402 mi
578 km
359 mi
CO2 score
240 g/km
-
Trunk score
420 L
14.8 cu ft
440 L
15.5 cu ft
Power-to-weight score
280 hp/t
209 kW/t
3.6 kg/hp
296 hp/t
220 kW/t
3.4 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 8 Series (G15) M850iBMW M4 (G82) Competition 3.0
Consumption10.5 L/100 km22.4 mpg US26.9 mpg UK10.2 L/100 km23.1 mpg US27.7 mpg UK
Cost / 100 km18.38 LC100 km17.85 LC100 km
Cost / 100 mi29.57 LC100 mi28.73 LC100 mi
Annual fuel used1,575 L416 US gal346 UK gal1,530 L404 US gal337 UK gal
Annual fuel cost2,756 LC/year2,678 LC/year

Head-to-head comparisons

BMW 8 Series (G15) M850i

  • Has 20 hp more
  • Has 100 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Has 69 km (43 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best estimated range

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW M4 (G82) Competition 3.0

  • Is 165 kg lighter
  • Uses 0.3 L/100 km less fuel
  • Has 15 hp/t better power-to-weight
  • Has 20 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series (G15) M850i
BMW M4 (G82) Competition 3.0
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