Car comparison

BMW 8 Series (G15) 840ivsBMW 8 Series Gran Coupe (G16) 840d

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

New comparison

BMW 8 Series (G15)

840i

340 hp2998 ccGasolineRWDAutomaticTurbochargedCoupe2019-2020
VS

BMW 8 Series Gran Coupe (G16)

840d

320 hp2993 ccDieselAWDAutomaticTurbochargedCoupe2019-2020

Comparison overview

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

Best choices

BMW 8 Series Gran Coupe (G16) 840d

  • Highest torque
    680 Nm
    502 lb-ft
  • Lowest combined fuel consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest city consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest highway consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Best estimated range
    1,079 km
    671 mi
  • Largest trunk
    440 L
  • Best overall score
    70/100
  • Best performance score
    72/100
  • Best economy score
    90/100
  • Best practicality score
    67/100

BMW 8 Series (G15) 840i

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    340 hp
    254 kW
  • Lightest
    1,710 kg
    3,770 lb
  • Best power-to-weight
    199 hp/t
    148 kW/t
    5.0 kg/hp

Specification comparison

Specification comparison
ModelBMW8 Series (G15)840iBMW8 Series Gran Coupe (G16)840d
Power
340hp254kW
320hp239kW
Torque
500Nm369lb-ft
680Nm502lb-ft
Curb weight
1,710kg3,770lb
1,925kg4,244lb
Gross weight
2,225kg4,905lb
2,560kg5,644lb
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
69.0s99% target: 262 km/h / 163 mph
Calculated
75.5s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.0s
5.1s
0-200 km/h
17.5s
Calculated
19.2s
Calculated
0-60 mph
4.8s
Calculated
4.8s
Calculated
Fuel consumption
7.3L/100 km32.2mpg US38.7mpg UK
6.3L/100 km37.3mpg US44.8mpg UK
Fuel consumption city
9L/100 km26.1mpg US31.4mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Quarter mile
13.1s
Calculated
13.3s
Calculated
Power-to-weight
199hp/t148kW/t90hp/1000 lb
Calculated
166hp/t124kW/t75hp/1000 lb
Calculated
Torque-to-weight
292Nm/t196lb-ft/ton
Calculated
353Nm/t236lb-ft/ton
Calculated
Estimated range
932km579mi
Calculated
1,079km671mi
Calculated
Displacement
2,998cc183cu in
2,993cc183cu in
Length
4,843mm191in
5,082mm200in
Width
1,902mm75in
1,932mm76in
Height
1,341mm53in
1,407mm55in
Wheelbase
2,822mm111in
3,023mm119in
Front track
1,627mm64in
1,627mm64in
Rear track
1,642mm65in
1,671mm66in
Ground clearance
121mm5in
-
Trunk volume
420L
-
Max trunk volume-
440L
Doors
2
4
Seats
4
5
Fuel tank
68L
68L
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 (G15) 840iBMW 8 Series Gran Coupe (G16) 840dPowerTorque
  • BMW 8 Series (G15) 840i: Power / Torque
  • BMW 8 Series Gran Coupe (G16) 840d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW8 Series (G15)840i5,000-6,500 rpm1,600-4,500 rpm6,750 rpm
BMW8 Series Gran Coupe (G16)840d4,400 rpm1,750-2,250 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series (G15)840iBMW8 Series Gran Coupe (G16)840d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
4.8 s
0-100 km/h
0-62 mph
5.0 s
5.1 s
0-200 km/h
0-124 mph
17.5 s
19.2 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
2.2 s
2.1 s
330 ft
101 m
5.7 s
5.7 s
1/8 mile
201 m
8.6 s
8.6 s
1000 ft
305 m
11.1 s
11.2 s
1/4 mile
402 m
13.1 s
13.3 s
Trap speed
1/4 mile
402 m
176 km/h
109 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
340 hp
254 kW
BMW8 Series Gran Coupe (G16)840d
320 hp
239 kW

BMW 8 Series (G15) 840i has 20 hp more than BMW 8 Series Gran Coupe (G16) 840d.

The biggest power difference is between BMW 8 Series Gran Coupe (G16) 840d and BMW 8 Series (G15) 840i: 20 hp (15 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
BMW8 Series Gran Coupe (G16)840d
680 Nm
502 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
1,710 kg
3,770 lb
BMW8 Series Gran Coupe (G16)840d
1,925 kg
4,244 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
BMW8 Series Gran Coupe (G16)840d
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)840i5.0 s
BMW8 Series Gran Coupe (G16)840d5.1 s

The biggest 0-100 km/h difference is between BMW 8 Series (G15) 840i and BMW 8 Series Gran Coupe (G16) 840d: 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)840i
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMW8 Series Gran Coupe (G16)840d
6.3 L/100 km
37.3 mpg US
44.8 mpg UK

The biggest fuel consumption difference is between BMW 8 Series Gran Coupe (G16) 840d and BMW 8 Series (G15) 840i: 1.0 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
199 hp/t
148 kW/t
5.0 kg/hp
BMW8 Series Gran Coupe (G16)840d
166 hp/t
124 kW/t
6.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW8 Series (G15)840i
932 km
579 mi
BMW8 Series Gran Coupe (G16)840d
1,079 km
671 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW8 Series (G15)840i
340 hp
254 kW
5.0 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW8 Series Gran Coupe (G16)840d
320 hp
239 kW
5.1 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)840i
Power
340 hp
254 kW
0-100 km/h5.0 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
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

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
340 hp
254 kW
0-100 km/h5.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
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

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 (G15)840i
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
5.0 s
BMW8 Series Gran Coupe (G16)840d
6.3 L/100 km
37.3 mpg US
44.8 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
199 hp/t
148 kW/t
5.0 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
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

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series (G15)840iBMW8 Series Gran Coupe (G16)840d
Power
340 hp
254 kW
320 hp
239 kW
Torque
500 Nm
369 lb-ft
680 Nm
502 lb-ft
Acceleration
5.0 s
5.1 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,710 kg
3,770 lb
1,925 kg
4,244 lb
Fuel consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
6.3 L/100 km
37.3 mpg US
44.8 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
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
Range score
932 km
579 mi
1,079 km
671 mi
CO2 score
-
166 g/km
Trunk score
420 L
14.8 cu ft
440 L
15.5 cu ft
Power-to-weight score
199 hp/t
148 kW/t
5.0 kg/hp
166 hp/t
124 kW/t
6.0 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 8 Series Gran Coupe (G16) 840d
Consumption7.3 L/100 km32.2 mpg US38.7 mpg UK6.3 L/100 km37.3 mpg US44.8 mpg UK
Cost / 100 km12.78 LC100 km11.03 LC100 km
Cost / 100 mi20.56 LC100 mi17.74 LC100 mi
Annual fuel used1,095 L289 US gal241 UK gal945 L250 US gal208 UK gal
Annual fuel cost1,916 LC/year1,654 LC/year

Head-to-head comparisons

BMW 8 Series (G15) 840i

  • Has 20 hp more
  • Is 215 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 5 km/h (3 mph) higher top speed
  • Has 33 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk

BMW 8 Series Gran Coupe (G16) 840d

  • Has 180 Nm more
  • Uses 1.0 L/100 km less fuel
  • Has 148 km (92 mi) more estimated range
  • Has 20 L more trunk volume

Pros

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

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series (G15) 840i
BMW 8 Series Gran Coupe (G16) 840d
Compare selected cars
2 vehicles selected

Popular comparisons

840i
840i
VS
BMW8 Series (G15)840ivsBMW8 Series Gran Coupe (G16)840i
840d
840d
VS
BMW8 Series Gran Coupe (G16)840dvsBMW8 Series (G15)840d
840i
850Ci 5.4
VS
BMW8 Series (G15)840ivsBMW8 Series (E31)850Ci 5.4
840i
440i
VS
BMW8 Series (G15)840ivsBMW4 Series Gran Coupe (F36)Facelift 2017440i
840i
440i
VS
BMW8 Series (G15)840ivsBMW4 Series Coupe (F32)Facelift 2017440i
840d
M235i
VS
BMW8 Series Gran Coupe (G16)840dvsBMW2 Series Gran Coupe (F44)M235i
840i
M440d
VS
BMW8 Series (G15)840ivsBMW4 Series Coupe (G22)M440d
840d
440i
VS
BMW8 Series Gran Coupe (G16)840dvsBMW4 Series Gran Coupe (F36)440i
840i
M240i
VS
BMW8 Series (G15)840ivsBMW2 Series Coupe (F22)M240i
840d
440i
VS
BMW8 Series Gran Coupe (G16)840dvsBMW4 Series Coupe (F32)440i
840d
640i
VS
BMW8 Series Gran Coupe (G16)840dvsBMW6 Series Gran Coupe (F06)640i
840i
M440i
VS
BMW8 Series (G15)840ivsBMW4 Series Gran Coupe (G26)M440i
BMW 8 Series (G15) 840i vs BMW 8 Series Gran Coupe (G16) 840d - car comparison - FastVsFaster