Car comparison

BMW 8 Series (G15) M850ivsBMW i4 (G26) M50 83.9 kWh

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 i4 (G26)

M50 83.9 kWh

544 hpElectricAWDAutomaticCoupe2021-2024

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
    3.8 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,930 kg
    4,255 lb
  • Best power-to-weight
    275 hp/t
    205 kW/t
    3.6 kg/hp
  • Best performance score
    86/100
  • Best economy score
    80/100

BMW i4 (G26) M50 83.9 kWh

  • Most powerful
    544 hp
    406 kW
  • Highest torque
    795 Nm
    586 lb-ft
  • Largest trunk
    470 L
  • Best overall score
    79/100
  • Best practicality score
    69/100

Specification comparison

Specification comparison
ModelBMW8 Series (G15)M850iBMWi4 (G26)M50 83.9 kWh
Power
530hp395kW
544hp406kW
Torque
750Nm553lb-ft
795Nm586lb-ft
Curb weight
1,930kg4,255lb
2,215kg4,883lb
Gross weight
2,395kg5,280lb
2,735kg6,030lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Calculated
To 99% top speed
49.9s99% target: 262 km/h / 163 mph
Calculated
43.7s99% target: 238 km/h / 148 mph
Calculated
0-100 km/h
3.8s
3.9s
0-200 km/h
13.0s
Calculated
15.1s
Calculated
0-60 mph
3.6s
Calculated
3.7s
Calculated
Fuel consumption
10L/100 km23.5mpg US28.2mpg UK
-
Fuel consumption city
14L/100 km16.8mpg US20.2mpg UK
-
Fuel consumption highway
7.7L/100 km30.5mpg US36.7mpg UK
-
Quarter mile
11.8s
Calculated
12.1s
Calculated
Power-to-weight
275hp/t205kW/t125hp/1000 lb
Calculated
246hp/t183kW/t111hp/1000 lb
Calculated
Torque-to-weight
389Nm/t260lb-ft/ton
Calculated
359Nm/t240lb-ft/ton
Calculated
Estimated range
680km423mi
Calculated
-
Displacement
4,395cc268cu in
-
Length
4,851mm191in
4,783mm188in
Width
1,902mm75in
1,852mm73in
Height
1,346mm53in
1,448mm57in
Wheelbase
2,822mm111in
2,856mm112in
Front track
1,627mm64in
1,589mm63in
Rear track
1,642mm65in
1,606mm63in
Ground clearance
128mm5in
125mm5in
Trunk volume
420L
470L
Max trunk volume-
1,290L
Doors
2
5
Seats
4
5
Fuel tank
68L
-

Performance charts

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

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series (G15)M850iBMWi4 (G26)M50 83.9 kWh
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
15.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Limited
Drag race simulation
60 ft
18 m
1.9 s
1.9 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
10.1 s
1/4 mile
402 m
11.8 s
12.1 s
Trap speed
1/4 mile
402 m
192 km/h
119 mph
185 km/h
115 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
BMWi4 (G26)M50 83.9 kWh
544 hp
406 kW

BMW i4 (G26) M50 83.9 kWh has 14 hp more than BMW 8 Series (G15) M850i.

The biggest power difference is between BMW 8 Series (G15) M850i and BMW i4 (G26) M50 83.9 kWh: 14 hp (10 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
BMWi4 (G26)M50 83.9 kWh
795 Nm
586 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
BMWi4 (G26)M50 83.9 kWh
2,215 kg
4,883 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
BMWi4 (G26)M50 83.9 kWh
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 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
BMWi4 (G26)M50 83.9 kWh3.9 s

Although BMW i4 (G26) M50 83.9 kWh 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 i4 (G26) M50 83.9 kWh: 0.1 s.

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
BMWi4 (G26)M50 83.9 kWh
246 hp/t
183 kW/t
4.1 kg/hp

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
BMWi4 (G26)M50 83.9 kWh
544 hp
406 kW
3.9 s
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 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
BMWi4 (G26)M50 83.9 kWh
Power
544 hp
406 kW
0-100 km/h3.9 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,448 mm
57.0 in

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series (G15)M850iBMWi4 (G26)M50 83.9 kWh
Power
530 hp
395 kW
544 hp
406 kW
Torque
750 Nm
553 lb-ft
795 Nm
586 lb-ft
Acceleration
3.8 s
3.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Lightness
1,930 kg
4,255 lb
2,215 kg
4,883 lb
Fuel consumption
10.0 L/100 km
23.5 mpg US
28.2 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
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,448 mm
57.0 in
Range score
680 km
423 mi
-
Trunk score
420 L
14.8 cu ft
470 L
16.6 cu ft
Power-to-weight score
275 hp/t
205 kW/t
3.6 kg/hp
246 hp/t
183 kW/t
4.1 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) M850i
Consumption10 L/100 km23.5 mpg US28.2 mpg UK
Cost / 100 km17.50 LC100 km
Cost / 100 mi28.16 LC100 mi
Annual fuel used1,500 L396 US gal330 UK gal
Annual fuel cost2,625 LC/year

Head-to-head comparisons

BMW 8 Series (G15) M850i

  • Is 285 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 25 km/h (16 mph) higher top speed
  • Has 29 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Smallest trunk

BMW i4 (G26) M50 83.9 kWh

  • Has 14 hp more
  • Has 45 Nm more
  • Has 50 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series (G15) M850i
BMW i4 (G26) M50 83.9 kWh
Compare selected cars
2 vehicles selected

Popular comparisons

M850i
M850i V8
VS
BMW8 Series (G15)M850ivsBMW8 Series Gran Coupe (G16)M850i V8
M850i
850Csi 5.6
VS
BMW8 Series (G15)M850ivsBMW8 Series (E31)850Csi 5.6
M50 83.9 kWh
Competition 3.0
VS
BMWi4 (G26)M50 83.9 kWhvsBMWM4 (G82)Competition 3.0
M50 83.9 kWh
3.0
VS
BMWi4 (G26)M50 83.9 kWhvsBMWM2 (G87)3.0
M850i
4.4 V8
VS
BMW8 Series (G15)M850ivsBMWM8 Gran Coupe (F93)4.4 V8
M50 83.9 kWh
M850i
VS
BMWi4 (G26)M50 83.9 kWhvsBMW8 Series (G15)M850i
M850i
4.4 V8
VS
BMW8 Series (G15)M850ivsBMWM8 Coupe (F92)4.4 V8
M50 83.9 kWh
Competition 4.4 V8
VS
BMWi4 (G26)M50 83.9 kWhvsBMWM8 Gran Coupe (F93)Facelift 2022Competition 4.4 V8
M50 83.9 kWh
Competition 4.4 V8
VS
BMWi4 (G26)M50 83.9 kWhvsBMWM8 Coupe (F92)Facelift 2022Competition 4.4 V8
M850i
CS 3.0
VS
BMW8 Series (G15)M850ivsBMWM2 coupe (F87)CS 3.0
M50 83.9 kWh
102 kWh
VS
BMWi4 (G26)M50 83.9 kWhvsPolestar4102 kWh
M850i
Competition 3.0
VS
BMW8 Series (G15)M850ivsBMWM4 (F82)Competition 3.0
BMW 8 Series (G15) M850i vs BMW i4 (G26) M50 83.9 kWh - car comparison - FastVsFaster