Car comparison

BMW 8 Series (G15) 840ivsBMW 4 Series Coupe (G22) 430d

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

New comparison

BMW 8 Series (G15)

840i

333 hp2998 ccGasolineAWDAutomaticTurbochargedCoupe2020-2022
VS

BMW 4 Series Coupe (G22)

430d

286 hp2993 ccDieselAWDAutomaticTurbochargedCoupe2021-2024

Comparison overview

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

Best choices

BMW 4 Series Coupe (G22) 430d

  • Highest torque
    650 Nm
    479 lb-ft
  • Lightest
    1,780 kg
    3,924 lb
  • Lowest combined fuel consumption
    5.1 L/100 km
    46.1 mpg US
    55.4 mpg UK
  • Lowest city consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest highway consumption
    4.5 L/100 km
    52.3 mpg US
    62.8 mpg UK
  • Best estimated range
    1,157 km
    719 mi
  • Largest trunk
    440 L
  • Best overall score
    66/100
  • Best performance score
    72/100
  • Best economy score
    93/100
  • Best practicality score
    53/100

BMW 8 Series (G15) 840i

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    333 hp
    248 kW
  • Best power-to-weight
    186 hp/t
    138 kW/t
    5.4 kg/hp

Specification comparison

Specification comparison
ModelBMW8 Series (G15)840iBMW4 Series Coupe (G22)430d
Power
333hp248kW
286hp213kW
Torque
500Nm369lb-ft
650Nm479lb-ft
Curb weight
1,795kg3,957lb
1,780kg3,924lb
Gross weight
2,280kg5,027lb
2,285kg5,038lb
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
70.1s99% target: 262 km/h / 163 mph
Calculated
70.5s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.9s
5.1s
0-200 km/h
17.5s
Calculated
17.9s
Calculated
0-60 mph
4.7s
Calculated
4.8s
Calculated
Fuel consumption
7.8L/100 km30.2mpg US36.2mpg UK
5.1L/100 km46.1mpg US55.4mpg UK
Fuel consumption city
9.9L/100 km23.8mpg US28.5mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Fuel consumption highway
6.6L/100 km35.6mpg US42.8mpg UK
4.5L/100 km52.3mpg US62.8mpg UK
Quarter mile
13.0s
Calculated
13.2s
Calculated
Power-to-weight
186hp/t138kW/t84hp/1000 lb
Calculated
161hp/t120kW/t73hp/1000 lb
Calculated
Torque-to-weight
279Nm/t186lb-ft/ton
Calculated
365Nm/t244lb-ft/ton
Calculated
Estimated range
872km542mi
Calculated
1,157km719mi
Calculated
Displacement
2,998cc183cu in
2,993cc183cu in
Length
4,843mm191in
4,768mm188in
Width
1,902mm75in
1,852mm73in
Height
1,341mm53in
1,390mm55in
Wheelbase
2,822mm111in
2,851mm112in
Front track
1,627mm64in
1,575mm62in
Rear track
1,642mm65in
1,611mm63in
Ground clearance
121mm5in
126mm5in
Trunk volume
420L
440L
Doors
2
2
Seats
4
4
Fuel tank
68L
59L

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) 840iBMW 4 Series Coupe (G22) 430dPowerTorque
  • BMW 8 Series (G15) 840i: Power / Torque
  • BMW 4 Series Coupe (G22) 430d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW8 Series (G15)840i5,500-6,250 rpm1,700-4,000 rpm6,500 rpm
BMW4 Series Coupe (G22)430d4,000 rpm1,500-2,500 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series (G15)840iBMW4 Series Coupe (G22)430d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
4.8 s
0-100 km/h
0-62 mph
4.9 s
5.1 s
0-200 km/h
0-124 mph
17.5 s
17.9 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
2.1 s
2.2 s
330 ft
101 m
5.7 s
5.8 s
1/8 mile
201 m
8.5 s
8.7 s
1000 ft
305 m
11.0 s
11.1 s
1/4 mile
402 m
13.0 s
13.2 s
Trap speed
1/4 mile
402 m
176 km/h
110 mph
175 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
333 hp
248 kW
BMW4 Series Coupe (G22)430d
286 hp
213 kW

BMW 8 Series (G15) 840i has 47 hp more than BMW 4 Series Coupe (G22) 430d.

The biggest power difference is between BMW 4 Series Coupe (G22) 430d and BMW 8 Series (G15) 840i: 47 hp (35 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
500 Nm
369 lb-ft
BMW4 Series Coupe (G22)430d
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)840i
1,795 kg
3,957 lb
BMW4 Series Coupe (G22)430d
1,780 kg
3,924 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)840i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW4 Series Coupe (G22)430d
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)840i4.9 s
BMW4 Series Coupe (G22)430d5.1 s

The biggest 0-100 km/h difference is between BMW 8 Series (G15) 840i and BMW 4 Series Coupe (G22) 430d: 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)840i
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Coupe (G22)430d
5.1 L/100 km
46.1 mpg US
55.4 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Coupe (G22) 430d and BMW 8 Series (G15) 840i: 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)840i
186 hp/t
138 kW/t
5.4 kg/hp
BMW4 Series Coupe (G22)430d
161 hp/t
120 kW/t
6.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
872 km
542 mi
BMW4 Series Coupe (G22)430d
1,157 km
719 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW8 Series (G15)840i
333 hp
248 kW
4.9 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW4 Series Coupe (G22)430d
286 hp
213 kW
5.1 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)840i
Power
333 hp
248 kW
0-100 km/h4.9 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
4,843 mm
190.7 in
Height
1,341 mm
52.8 in
BMW4 Series Coupe (G22)430d
Power
286 hp
213 kW
0-100 km/h5.1 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
4,768 mm
187.7 in
Height
1,390 mm
54.7 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)840i
Power
333 hp
248 kW
0-100 km/h4.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Coupe (G22)430d
Power
286 hp
213 kW
0-100 km/h5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
5.1 L/100 km
46.1 mpg US
55.4 mpg UK

BMW 4 Series Coupe (G22) 430d 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)840i
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
4.9 s
BMW4 Series Coupe (G22)430d
5.1 L/100 km
46.1 mpg US
55.4 mpg UK
5.1 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)840i
186 hp/t
138 kW/t
5.4 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Coupe (G22)430d
161 hp/t
120 kW/t
6.2 kg/hp
5.1 L/100 km
46.1 mpg US
55.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series (G15)840iBMW4 Series Coupe (G22)430d
Power
333 hp
248 kW
286 hp
213 kW
Torque
500 Nm
369 lb-ft
650 Nm
479 lb-ft
Acceleration
4.9 s
5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,795 kg
3,957 lb
1,780 kg
3,924 lb
Fuel consumption
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
5.1 L/100 km
46.1 mpg US
55.4 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
420 L
14.8 cu ft
Length
4,843 mm
190.7 in
Height
1,341 mm
52.8 in
Doors/seats
2 doors
4 seats
Trunk
440 L
15.5 cu ft
Length
4,768 mm
187.7 in
Height
1,390 mm
54.7 in
Range score
872 km
542 mi
1,157 km
719 mi
Trunk score
420 L
14.8 cu ft
440 L
15.5 cu ft
Power-to-weight score
186 hp/t
138 kW/t
5.4 kg/hp
161 hp/t
120 kW/t
6.2 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) 840iBMW 4 Series Coupe (G22) 430d
Consumption7.8 L/100 km30.2 mpg US36.2 mpg UK5.1 L/100 km46.1 mpg US55.4 mpg UK
Cost / 100 km13.65 LC100 km8.92 LC100 km
Cost / 100 mi21.97 LC100 mi14.36 LC100 mi
Annual fuel used1,170 L309 US gal257 UK gal765 L202 US gal168 UK gal
Annual fuel cost2,048 LC/year1,339 LC/year

Head-to-head comparisons

BMW 8 Series (G15) 840i

  • Has 47 hp more
  • Is 0.2 s quicker from 0-100 km/h
  • Has 25 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW 4 Series Coupe (G22) 430d

  • Has 150 Nm more
  • Is 15 kg lighter
  • Uses 2.7 L/100 km less fuel
  • Has 285 km (177 mi) more estimated range
  • Has 20 L more trunk volume

Pros

  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series (G15) 840i
BMW 4 Series Coupe (G22) 430d
Compare selected cars
2 vehicles selected

Popular comparisons

840i
840i
VS
BMW8 Series (G15)840ivsBMW8 Series Gran Coupe (G16)840i
430d
430d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Gran Coupe (G26)430d
840i
850Ci 5.4
VS
BMW8 Series (G15)840ivsBMW8 Series (E31)850Ci 5.4
430d
430d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Gran Coupe (F36)Facelift 2017430d
840i
M440d
VS
BMW8 Series (G15)840ivsBMW4 Series Coupe (G22)M440d
430d
430d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Coupe (F32)Facelift 2017430d
430d
435i
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Gran Coupe (F36)435i
840i
M235i
VS
BMW8 Series (G15)840ivsBMW2 Series Gran Coupe (F44)M235i
430d
430d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Coupe (F32)430d
430d
430d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Convertible (G23)430d
430d
435d
VS
BMW4 Series Coupe (G22)430dvsBMW4 Series Convertible (F33)Facelift 2017435d
840i
M235
VS
BMW8 Series (G15)840ivsBMW2 Series Gran Coupe (F74)M235
BMW 8 Series (G15) 840i vs BMW 4 Series Coupe (G22) 430d - car comparison - FastVsFaster