Car comparison

BMW X3 (G01) M40dvsBMW X6 (G06) 40i

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

New comparison

BMW X3 (G01)

M40d

340 hp2993 ccDieselAWDAutomaticTurbocharged2020-2021
VS

BMW X6 (G06)

40i

333 hp2998 ccGasolineAWDAutomaticTurbocharged2020-2023

Comparison overview

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

Best choices

BMW X3 (G01) M40d

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    250 km/h
    155 mph
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Lightest
    2,020 kg
    4,453 lb
  • Best power-to-weight
    168 hp/t
    126 kW/t
    5.9 kg/hp
  • Lowest combined fuel consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Lowest city consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest highway consumption
    5.2 L/100 km
    45.2 mpg US
    54.3 mpg UK
  • Best estimated range
    1,133 km
    704 mi
  • Best overall score
    74/100
  • Best performance score
    72/100
  • Best economy score
    91/100

Specification comparison

Specification comparison
ModelBMWX3 (G01)M40dBMWX6 (G06)40i
Power
340hp254kW
333hp248kW
Torque
700Nm516lb-ft
450Nm332lb-ft
Curb weight
2,020kg4,453lb
2,095kg4,619lb
Gross weight
2,560kg5,644lb
2,840kg6,261lb
Top speed
250 km/h
155 mph
248 km/h
154 mph
To 99% top speed
73.2s99% target: 248 km/h / 154 mph
Calculated
91.9s99% target: 246 km/h / 153 mph
Calculated
0-100 km/h
4.9s
5.7s
0-200 km/h
20.1s
Calculated
24.8s
Calculated
0-60 mph
4.6s
Calculated
5.4s
Calculated
Fuel consumption
6L/100 km39.2mpg US47.1mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
7.2L/100 km32.7mpg US39.2mpg UK
9.9L/100 km23.8mpg US28.5mpg UK
Fuel consumption highway
5.2L/100 km45.2mpg US54.3mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
13.2s
Calculated
13.9s
Calculated
Power-to-weight
168hp/t126kW/t76hp/1000 lb
Calculated
159hp/t119kW/t72hp/1000 lb
Calculated
Torque-to-weight
347Nm/t232lb-ft/ton
Calculated
215Nm/t144lb-ft/ton
Calculated
Estimated range
1,133km704mi
Calculated
1,012km629mi
Calculated
Displacement
2,993cc183cu in
2,998cc183cu in
Length
4,716mm186in
4,935mm194in
Width
1,897mm75in
2,004mm79in
Height
1,676mm66in
1,696mm67in
Wheelbase
2,864mm113in
2,975mm117in
Front track
1,615mm64in
1,678mm66in
Rear track
1,594mm63in
1,688mm66in
Ground clearance
204mm8in
216mm9in
Trunk volume
550L
580L
Max trunk volume
1,600L
1,530L
Doors
5
5
Seats
5
5
Fuel tank
68L
83L

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 X3 (G01) M40dBMW X6 (G06) 40iPowerTorque
  • BMW X3 (G01) M40d: Power / Torque
  • BMW X6 (G06) 40i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWX3 (G01)M40d4,400 rpm1,750-2,250 rpm4,650 rpm
BMWX6 (G06)40i5,500-6,250 rpm1,600-4,800 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWX3 (G01)M40dBMWX6 (G06)40i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
5.4 s
0-100 km/h
0-62 mph
4.9 s
5.7 s
0-200 km/h
0-124 mph
20.1 s
24.8 s
Top speed
250 km/h
155 mph
248 km/h
154 mph
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.6 s
5.9 s
1/8 mile
201 m
8.5 s
9.0 s
1000 ft
305 m
11.0 s
11.7 s
1/4 mile
402 m
13.2 s
13.9 s
Trap speed
1/4 mile
402 m
170 km/h
106 mph
161 km/h
100 mph

Power comparison

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

Chart data table
VehicleValue
BMWX3 (G01)M40d
340 hp
254 kW
BMWX6 (G06)40i
333 hp
248 kW

BMW X3 (G01) M40d has 7 hp more than BMW X6 (G06) 40i.

The biggest power difference is between BMW X6 (G06) 40i and BMW X3 (G01) M40d: 7 hp (5 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWX3 (G01)M40d
700 Nm
516 lb-ft
BMWX6 (G06)40i
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWX3 (G01)M40d
2,020 kg
4,453 lb
BMWX6 (G06)40i
2,095 kg
4,619 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
BMWX3 (G01)M40d
250 km/h
155 mph
BMWX6 (G06)40i
248 km/h
154 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
BMWX3 (G01)M40d4.9 s
BMWX6 (G06)40i5.7 s

The biggest 0-100 km/h difference is between BMW X3 (G01) M40d and BMW X6 (G06) 40i: 0.8 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
BMWX3 (G01)M40d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMWX6 (G06)40i
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between BMW X3 (G01) M40d and BMW X6 (G06) 40i: 2.2 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
BMWX3 (G01)M40d
168 hp/t
126 kW/t
5.9 kg/hp
BMWX6 (G06)40i
159 hp/t
119 kW/t
6.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWX3 (G01)M40d
1,133 km
704 mi
BMWX6 (G06)40i
1,012 km
629 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWX3 (G01)M40d
340 hp
254 kW
4.9 s
250 km/h
155 mph
BMWX6 (G06)40i
333 hp
248 kW
5.7 s
248 km/h
154 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
BMWX3 (G01)M40d
Power
340 hp
254 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
BMWX6 (G06)40i
Power
333 hp
248 kW
0-100 km/h5.7 s
Top speed
248 km/h
154 mph
Doors/seats
5 doors
5 seats
Trunk
580 L
20.5 cu ft
Length
4,935 mm
194.3 in
Height
1,696 mm
66.8 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
BMWX3 (G01)M40d
Power
340 hp
254 kW
0-100 km/h4.9 s
Top speed
250 km/h
155 mph
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMWX6 (G06)40i
Power
333 hp
248 kW
0-100 km/h5.7 s
Top speed
248 km/h
154 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

BMW X3 (G01) M40d 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
BMWX3 (G01)M40d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
4.9 s
BMWX6 (G06)40i
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
5.7 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
BMWX3 (G01)M40d
168 hp/t
126 kW/t
5.9 kg/hp
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
BMWX6 (G06)40i
159 hp/t
119 kW/t
6.3 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWX3 (G01)M40dBMWX6 (G06)40i
Power
340 hp
254 kW
333 hp
248 kW
Torque
700 Nm
516 lb-ft
450 Nm
332 lb-ft
Acceleration
4.9 s
5.7 s
Top speed
250 km/h
155 mph
248 km/h
154 mph
Lightness
2,020 kg
4,453 lb
2,095 kg
4,619 lb
Fuel consumption
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
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
Doors/seats
5 doors
5 seats
Trunk
580 L
20.5 cu ft
Length
4,935 mm
194.3 in
Height
1,696 mm
66.8 in
Range score
1,133 km
704 mi
1,012 km
629 mi
Trunk score
550 L
19.4 cu ft
580 L
20.5 cu ft
Power-to-weight score
168 hp/t
126 kW/t
5.9 kg/hp
159 hp/t
119 kW/t
6.3 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 X3 (G01) M40dBMW X6 (G06) 40i
Consumption6 L/100 km39.2 mpg US47.1 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km10.50 LC100 km14.35 LC100 km
Cost / 100 mi16.90 LC100 mi23.09 LC100 mi
Annual fuel used900 L238 US gal198 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost1,575 LC/year2,153 LC/year

Head-to-head comparisons

BMW X3 (G01) M40d

  • Has 7 hp more
  • Has 250 Nm more
  • Is 75 kg lighter
  • Is 0.8 s quicker from 0-100 km/h
  • Has 2 km/h (1 mph) higher top speed
  • Uses 2.2 L/100 km less fuel
  • Has 9 hp/t better power-to-weight
  • Has 121 km (75 mi) more estimated range

Pros

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

Cons

  • Smallest trunk

BMW X6 (G06) 40i

  • Has 30 L more trunk volume

Pros

  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW X3 (G01) M40d
BMW X6 (G06) 40i
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