Car comparison

BMW 8 Series Gran Coupe (G16) 840dvsBMW X3 (G01) M40d

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 X3 (G01)

M40d

326 hp2993 ccDieselAWDAutomaticTurbocharged2018-2020

Comparison overview

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

Best choices

BMW 8 Series Gran Coupe (G16) 840d

  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • 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
  • Lowest CO2 emissions
    166 g/km
  • Best estimated range
    1,079 km
    671 mi
  • Best performance score
    72/100
  • Best economy score
    90/100

BMW X3 (G01) M40d

  • Quickest 0-100 km/h
    4.9 s
  • Most powerful
    326 hp
    243 kW
  • Lightest
    1,895 kg
    4,178 lb
  • Best power-to-weight
    172 hp/t
    128 kW/t
    5.8 kg/hp
  • Largest trunk
    550 L
  • Best overall score
    74/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelBMW8 Series Gran Coupe (G16)840dBMWX3 (G01)M40d
Power
320hp239kW
326hp243kW
Torque
680Nm502lb-ft
680Nm502lb-ft
Curb weight
1,925kg4,244lb
1,895kg4,178lb
Gross weight
2,560kg5,644lb
2,550kg5,622lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
250 km/h
155 mph
To 99% top speed
74.9s99% target: 257 km/h / 160 mph
Calculated
73.2s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.1s
4.9s
0-200 km/h
19.1s
Calculated
20.1s
Calculated
0-60 mph
4.8s
Calculated
4.6s
Calculated
Fuel consumption
6.3L/100 km37.3mpg US44.8mpg UK
6.5L/100 km36.2mpg US43.5mpg UK
Fuel consumption city
7.4L/100 km31.8mpg US38.2mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption highway
5.7L/100 km41.3mpg US49.6mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
13.3s
Calculated
13.2s
Calculated
Power-to-weight
166hp/t124kW/t75hp/1000 lb
Calculated
172hp/t128kW/t78hp/1000 lb
Calculated
Torque-to-weight
353Nm/t236lb-ft/ton
Calculated
359Nm/t240lb-ft/ton
Calculated
Estimated range
1,079km671mi
Calculated
1,046km650mi
Calculated
Displacement
2,993cc183cu in
2,993cc183cu in
Length
5,082mm200in
4,716mm186in
Width
1,932mm76in
1,897mm75in
Height
1,407mm55in
1,676mm66in
Wheelbase
3,023mm119in
2,864mm113in
Front track
1,627mm64in
1,615mm64in
Rear track
1,671mm66in
1,594mm63in
Ground clearance-
204mm8in
Trunk volume-
550L
Max trunk volume
440L
1,600L
Doors
4
5
Seats
5
5
Fuel tank
68L
68L
CO2 emissions
166g/km
172g/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 X3 (G01) M40dPowerTorque
  • BMW 8 Series Gran Coupe (G16) 840d: Power / Torque
  • BMW X3 (G01) M40d: 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
BMWX3 (G01)M40d4,400 rpm1,750-2,750 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW8 Series Gran Coupe (G16)840dBMWX3 (G01)M40d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
4.6 s
0-100 km/h
0-62 mph
5.1 s
4.9 s
0-200 km/h
0-124 mph
19.1 s
20.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
250 km/h
155 mph
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.7 s
5.6 s
1/8 mile
201 m
8.6 s
8.5 s
1000 ft
305 m
11.2 s
11.0 s
1/4 mile
402 m
13.3 s
13.2 s
Trap speed
1/4 mile
402 m
172 km/h
107 mph
170 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
BMWX3 (G01)M40d
326 hp
243 kW

BMW X3 (G01) M40d has 6 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 X3 (G01) M40d: 6 hp (4 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
BMWX3 (G01)M40d
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 Gran Coupe (G16)840d
1,925 kg
4,244 lb
BMWX3 (G01)M40d
1,895 kg
4,178 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
BMWX3 (G01)M40d
250 km/h
155 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
BMWX3 (G01)M40d4.9 s

The biggest 0-100 km/h difference is between BMW X3 (G01) M40d and BMW 8 Series Gran Coupe (G16) 840d: 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
BMWX3 (G01)M40d
6.5 L/100 km
36.2 mpg US
43.5 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
BMWX3 (G01)M40d
172 hp/t
128 kW/t
5.8 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
BMWX3 (G01)M40d
1,046 km
650 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
BMWX3 (G01)M40d
326 hp
243 kW
4.9 s
250 km/h
155 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
BMWX3 (G01)M40d
Power
326 hp
243 kW
0-100 km/h4.9 s
Top speed
250 km/h
155 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,716 mm
185.7 in
Height
1,676 mm
66.0 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
BMWX3 (G01)M40d
Power
326 hp
243 kW
0-100 km/h4.9 s
Top speed
250 km/h
155 mph
6.5 L/100 km
36.2 mpg US
43.5 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
BMWX3 (G01)M40d
6.5 L/100 km
36.2 mpg US
43.5 mpg UK
4.9 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 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
BMWX3 (G01)M40d
172 hp/t
128 kW/t
5.8 kg/hp
6.5 L/100 km
36.2 mpg US
43.5 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW8 Series Gran Coupe (G16)840dBMWX3 (G01)M40d
Power
320 hp
239 kW
326 hp
243 kW
Torque
680 Nm
502 lb-ft
680 Nm
502 lb-ft
Acceleration
5.1 s
4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,925 kg
4,244 lb
1,895 kg
4,178 lb
Fuel consumption
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
6.5 L/100 km
36.2 mpg US
43.5 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
550 L
19.4 cu ft
Length
4,716 mm
185.7 in
Height
1,676 mm
66.0 in
Range score
1,079 km
671 mi
1,046 km
650 mi
CO2 score
166 g/km
172 g/km
Trunk score
440 L
15.5 cu ft
550 L
19.4 cu ft
Power-to-weight score
166 hp/t
124 kW/t
6.0 kg/hp
172 hp/t
128 kW/t
5.8 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 X3 (G01) M40d
Consumption6.3 L/100 km37.3 mpg US44.8 mpg UK6.5 L/100 km36.2 mpg US43.5 mpg UK
Cost / 100 km11.03 LC100 km11.38 LC100 km
Cost / 100 mi17.74 LC100 mi18.31 LC100 mi
Annual fuel used945 L250 US gal208 UK gal975 L258 US gal214 UK gal
Annual fuel cost1,654 LC/year1,706 LC/year

Head-to-head comparisons

BMW 8 Series Gran Coupe (G16) 840d

  • Has 10 km/h (6 mph) higher top speed
  • Uses 0.2 L/100 km less fuel
  • Has 33 km (21 mi) more estimated range
  • Emits 6 g/km less CO2

Pros

  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Smallest trunk

BMW X3 (G01) M40d

  • Has 6 hp more
  • Is 30 kg lighter
  • Is 0.2 s quicker from 0-100 km/h
  • Has 6 hp/t better power-to-weight
  • Has 110 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 8 Series Gran Coupe (G16) 840d
BMW X3 (G01) M40d
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