Car comparison

BMW 8 Series Gran Coupe (G16) 840dvsBMW 4 Series Gran Coupe (G26) 430d

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

New comparison

BMW 8 Series Gran Coupe (G16)

840d

320 hp2993 ccDieselAWDAutomaticTurbochargedCoupe2019-2020
VS

BMW 4 Series Gran Coupe (G26)

430d

286 hp2993 ccDieselAWDAutomaticTurbochargedCoupe2022-2024

Comparison overview

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

Best choices

BMW 8 Series Gran Coupe (G16) 840d

  • Quickest 0-100 km/h
    5.1 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    320 hp
    239 kW
  • Highest torque
    680 Nm
    502 lb-ft
  • Best power-to-weight
    166 hp/t
    124 kW/t
    6.0 kg/hp
  • Best estimated range
    1,079 km
    671 mi
  • Best overall score
    70/100
  • Best performance score
    72/100

BMW 4 Series Gran Coupe (G26) 430d

  • Lightest
    1,845 kg
    4,068 lb
  • Lowest combined fuel consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Largest trunk
    470 L
  • Best economy score
    91/100
  • Best practicality score
    69/100

Specification comparison

Specification comparison
ModelBMW8 Series Gran Coupe (G16)840dBMW4 Series Gran Coupe (G26)430d
Power
320hp239kW
286hp213kW
Torque
680Nm502lb-ft
650Nm479lb-ft
Curb weight
1,925kg4,244lb
1,845kg4,068lb
Gross weight
2,560kg5,644lb
2,400kg5,291lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
74.9s99% target: 257 km/h / 160 mph
Calculated
74.4s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.1s
5.3s
0-200 km/h
19.1s
Calculated
19.4s
Calculated
0-60 mph
4.8s
Calculated
5.0s
Calculated
Fuel consumption
6.3L/100 km37.3mpg US44.8mpg UK
6L/100 km39.2mpg US47.1mpg UK
Fuel consumption city
7.4L/100 km31.8mpg US38.2mpg UK
-
Fuel consumption highway
5.7L/100 km41.3mpg US49.6mpg UK
-
Quarter mile
13.3s
Calculated
13.5s
Calculated
Power-to-weight
166hp/t124kW/t75hp/1000 lb
Calculated
155hp/t116kW/t70hp/1000 lb
Calculated
Torque-to-weight
353Nm/t236lb-ft/ton
Calculated
352Nm/t236lb-ft/ton
Calculated
Estimated range
1,079km671mi
Calculated
983km611mi
Calculated
Displacement
2,993cc183cu in
2,993cc183cu in
Length
5,082mm200in
4,783mm188in
Width
1,932mm76in
1,852mm73in
Height
1,407mm55in
1,442mm57in
Wheelbase
3,023mm119in
2,856mm112in
Front track
1,627mm64in
1,597mm63in
Rear track
1,671mm66in
1,624mm64in
Ground clearance-
140mm6in
Trunk volume-
470L
Max trunk volume
440L
1,290L
Doors
4
5
Seats
5
5
Fuel tank
68L
59L
CO2 emissions
166g/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 Gran Coupe (G16) 840dBMW 4 Series Gran Coupe (G26) 430dPowerTorque
  • BMW 8 Series Gran Coupe (G16) 840d: Power / Torque
  • BMW 4 Series Gran Coupe (G26) 430d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW8 Series Gran Coupe (G16)840d4,400 rpm1,750-2,250 rpm4,650 rpm
BMW4 Series Gran Coupe (G26)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 Gran Coupe (G16)840dBMW4 Series Gran Coupe (G26)430d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
5.0 s
0-100 km/h
0-62 mph
5.1 s
5.3 s
0-200 km/h
0-124 mph
19.1 s
19.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 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
8.6 s
8.8 s
1000 ft
305 m
11.2 s
11.3 s
1/4 mile
402 m
13.3 s
13.5 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
171 km/h
106 mph

Power comparison

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

Chart data table
VehicleValue
BMW8 Series Gran Coupe (G16)840d
320 hp
239 kW
BMW4 Series Gran Coupe (G26)430d
286 hp
213 kW

BMW 8 Series Gran Coupe (G16) 840d has 34 hp more than BMW 4 Series Gran Coupe (G26) 430d.

The biggest power difference is between BMW 4 Series Gran Coupe (G26) 430d and BMW 8 Series Gran Coupe (G16) 840d: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW8 Series Gran Coupe (G16)840d
680 Nm
502 lb-ft
BMW4 Series Gran Coupe (G26)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 Gran Coupe (G16)840d
1,925 kg
4,244 lb
BMW4 Series Gran Coupe (G26)430d
1,845 kg
4,068 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 Gran Coupe (G16)840d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Gran Coupe (G26)430d
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 Gran Coupe (G16)840d5.1 s
BMW4 Series Gran Coupe (G26)430d5.3 s

The biggest 0-100 km/h difference is between BMW 8 Series Gran Coupe (G16) 840d and BMW 4 Series Gran Coupe (G26) 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 Gran Coupe (G16)840d
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
BMW4 Series Gran Coupe (G26)430d
6.0 L/100 km
39.2 mpg US
47.1 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 Gran Coupe (G16)840d
166 hp/t
124 kW/t
6.0 kg/hp
BMW4 Series Gran Coupe (G26)430d
155 hp/t
116 kW/t
6.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW8 Series Gran Coupe (G16)840d
1,079 km
671 mi
BMW4 Series Gran Coupe (G26)430d
983 km
611 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW8 Series Gran Coupe (G16)840d
320 hp
239 kW
5.1 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Gran Coupe (G26)430d
286 hp
213 kW
5.3 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 Gran Coupe (G16)840d
Power
320 hp
239 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
440 L
15.5 cu ft
Length
5,082 mm
200.1 in
Height
1,407 mm
55.4 in
BMW4 Series Gran Coupe (G26)430d
Power
286 hp
213 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 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 Gran Coupe (G16)840d
Power
320 hp
239 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
BMW4 Series Gran Coupe (G26)430d
Power
286 hp
213 kW
0-100 km/h5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.0 L/100 km
39.2 mpg US
47.1 mpg UK

BMW 8 Series Gran Coupe (G16) 840d 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 Gran Coupe (G16)840d
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
5.1 s
BMW4 Series Gran Coupe (G26)430d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
5.3 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 Gran Coupe (G16)840d
166 hp/t
124 kW/t
6.0 kg/hp
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
BMW4 Series Gran Coupe (G26)430d
155 hp/t
116 kW/t
6.5 kg/hp
6.0 L/100 km
39.2 mpg US
47.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series Gran Coupe (G16)840dBMW4 Series Gran Coupe (G26)430d
Power
320 hp
239 kW
286 hp
213 kW
Torque
680 Nm
502 lb-ft
650 Nm
479 lb-ft
Acceleration
5.1 s
5.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,925 kg
4,244 lb
1,845 kg
4,068 lb
Fuel consumption
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
440 L
15.5 cu ft
Length
5,082 mm
200.1 in
Height
1,407 mm
55.4 in
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 in
Range score
1,079 km
671 mi
983 km
611 mi
CO2 score
166 g/km
-
Trunk score
440 L
15.5 cu ft
470 L
16.6 cu ft
Power-to-weight score
166 hp/t
124 kW/t
6.0 kg/hp
155 hp/t
116 kW/t
6.5 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 Gran Coupe (G16) 840dBMW 4 Series Gran Coupe (G26) 430d
Consumption6.3 L/100 km37.3 mpg US44.8 mpg UK6 L/100 km39.2 mpg US47.1 mpg UK
Cost / 100 km11.03 LC100 km10.50 LC100 km
Cost / 100 mi17.74 LC100 mi16.90 LC100 mi
Annual fuel used945 L250 US gal208 UK gal900 L238 US gal198 UK gal
Annual fuel cost1,654 LC/year1,575 LC/year

Head-to-head comparisons

BMW 8 Series Gran Coupe (G16) 840d

  • Has 34 hp more
  • Has 30 Nm more
  • Is 0.2 s quicker from 0-100 km/h
  • Has 11 hp/t better power-to-weight
  • Has 96 km (60 mi) more estimated range

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW 4 Series Gran Coupe (G26) 430d

  • Is 80 kg lighter
  • Uses 0.3 L/100 km less fuel
  • Has 30 L more trunk volume

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series Gran Coupe (G16) 840d
BMW 4 Series Gran Coupe (G26) 430d
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