Car comparison

BMW Z4 (G29) M40ivsBMW X3 (G01) M40i

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

New comparison

BMW Z4 (G29)

M40i

340 hp2998 ccGasolineAWDAutomaticTurbochargedRoadster2018-2022
VS

BMW X3 (G01)

M40i

360 hp2998 ccGasolineAWDAutomaticTurbocharged2019-2021

Comparison overview

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

Best choices

BMW Z4 (G29) M40i

  • Quickest 0-100 km/h
    4.5 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,535 kg
    3,384 lb
  • Best power-to-weight
    221 hp/t
    165 kW/t
    4.5 kg/hp
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Lowest city consumption
    9.2 L/100 km
    25.6 mpg US
    30.7 mpg UK
  • Lowest highway consumption
    6.3 L/100 km
    37.3 mpg US
    44.8 mpg UK
  • Lowest CO2 emissions
    168 g/km
  • Best performance score
    73/100
  • Best economy score
    87/100

BMW X3 (G01) M40i

  • Most powerful
    360 hp
    268 kW
  • Best estimated range
    793 km
    493 mi
  • Largest trunk
    550 L
  • Best overall score
    72/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelBMWZ4 (G29)M40iBMWX3 (G01)M40i
Power
340hp254kW
360hp268kW
Torque
500Nm369lb-ft
500Nm369lb-ft
Curb weight
1,535kg3,384lb
1,845kg4,068lb
Gross weight
1,860kg4,101lb
2,455kg5,412lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
250 km/h
155 mph
To 99% top speed
57.6s99% target: 262 km/h / 163 mph
Calculated
69.7s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
4.5s
4.8s
0-200 km/h
15.2s
Calculated
19.4s
Calculated
0-60 mph
4.3s
Calculated
4.5s
Calculated
Fuel consumption
7.4L/100 km31.8mpg US38.2mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption city
9.2L/100 km25.6mpg US30.7mpg UK
10.1L/100 km23.3mpg US28.0mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
12.6s
Calculated
13.1s
Calculated
Power-to-weight
221hp/t165kW/t100hp/1000 lb
Calculated
195hp/t146kW/t89hp/1000 lb
Calculated
Torque-to-weight
326Nm/t218lb-ft/ton
Calculated
271Nm/t181lb-ft/ton
Calculated
Estimated range
703km437mi
Calculated
793km493mi
Calculated
Displacement
2,998cc183cu in
2,998cc183cu in
Length
4,324mm170in
4,716mm186in
Width
1,864mm73in
1,897mm75in
Height
1,304mm51in
1,676mm66in
Wheelbase
2,470mm97in
2,864mm113in
Front track
1,594mm63in
1,615mm64in
Rear track
1,589mm63in
1,594mm63in
Ground clearance
114mm4in
204mm8in
Trunk volume
281L
550L
Max trunk volume-
1,600L
Doors
2
5
Seats
2
5
Fuel tank
52L
65L
CO2 emissions
168g/km
187g/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 Z4 (G29) M40iBMW X3 (G01) M40iPowerTorque
  • BMW Z4 (G29) M40i: Power / Torque
  • BMW X3 (G01) M40i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ4 (G29)M40i5,000-6,500 rpm1,600-4,500 rpm6,750 rpm
BMWX3 (G01)M40i5,200-6,500 rpm1,850-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ4 (G29)M40iBMWX3 (G01)M40i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.5 s
0-100 km/h
0-62 mph
4.5 s
4.8 s
0-200 km/h
0-124 mph
15.2 s
19.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
250 km/h
155 mph
Drag race simulation
60 ft
18 m
2.1 s
2.0 s
330 ft
101 m
5.5 s
5.5 s
1/8 mile
201 m
8.2 s
8.4 s
1000 ft
305 m
10.6 s
10.9 s
1/4 mile
402 m
12.6 s
13.1 s
Trap speed
1/4 mile
402 m
184 km/h
114 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
340 hp
254 kW
BMWX3 (G01)M40i
360 hp
268 kW

BMW X3 (G01) M40i has 20 hp more than BMW Z4 (G29) M40i.

The biggest power difference is between BMW Z4 (G29) M40i and BMW X3 (G01) M40i: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
500 Nm
369 lb-ft
BMWX3 (G01)M40i
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
1,535 kg
3,384 lb
BMWX3 (G01)M40i
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
BMWZ4 (G29)M40i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMWX3 (G01)M40i
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
BMWZ4 (G29)M40i4.5 s
BMWX3 (G01)M40i4.8 s

Although BMW X3 (G01) M40i has more power, BMW Z4 (G29) M40i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW Z4 (G29) M40i and BMW X3 (G01) M40i: 0.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
BMWX3 (G01)M40i
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

The biggest fuel consumption difference is between BMW Z4 (G29) M40i and BMW X3 (G01) M40i: 0.8 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
BMWZ4 (G29)M40i
221 hp/t
165 kW/t
4.5 kg/hp
BMWX3 (G01)M40i
195 hp/t
146 kW/t
5.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
703 km
437 mi
BMWX3 (G01)M40i
793 km
493 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ4 (G29)M40i
340 hp
254 kW
4.5 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMWX3 (G01)M40i
360 hp
268 kW
4.8 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
BMWZ4 (G29)M40i
Power
340 hp
254 kW
0-100 km/h4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 in
BMWX3 (G01)M40i
Power
360 hp
268 kW
0-100 km/h4.8 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
BMWZ4 (G29)M40i
Power
340 hp
254 kW
0-100 km/h4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
BMWX3 (G01)M40i
Power
360 hp
268 kW
0-100 km/h4.8 s
Top speed
250 km/h
155 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

BMW Z4 (G29) M40i 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
BMWZ4 (G29)M40i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
4.5 s
BMWX3 (G01)M40i
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
4.8 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
BMWZ4 (G29)M40i
221 hp/t
165 kW/t
4.5 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
BMWX3 (G01)M40i
195 hp/t
146 kW/t
5.1 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ4 (G29)M40iBMWX3 (G01)M40i
Power
340 hp
254 kW
360 hp
268 kW
Torque
500 Nm
369 lb-ft
500 Nm
369 lb-ft
Acceleration
4.5 s
4.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,535 kg
3,384 lb
1,845 kg
4,068 lb
Fuel consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 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
703 km
437 mi
793 km
493 mi
CO2 score
168 g/km
187 g/km
Trunk score
281 L
9.9 cu ft
550 L
19.4 cu ft
Power-to-weight score
221 hp/t
165 kW/t
4.5 kg/hp
195 hp/t
146 kW/t
5.1 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 Z4 (G29) M40iBMW X3 (G01) M40i
Consumption7.4 L/100 km31.8 mpg US38.2 mpg UK8.2 L/100 km28.7 mpg US34.4 mpg UK
Cost / 100 km12.95 LC100 km14.35 LC100 km
Cost / 100 mi20.84 LC100 mi23.09 LC100 mi
Annual fuel used1,110 L293 US gal244 UK gal1,230 L325 US gal271 UK gal
Annual fuel cost1,943 LC/year2,153 LC/year

Head-to-head comparisons

BMW Z4 (G29) M40i

  • Is 310 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 15 km/h (9 mph) higher top speed
  • Uses 0.8 L/100 km less fuel
  • Has 26 hp/t better power-to-weight
  • Emits 19 g/km less CO2

Pros

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

Cons

  • Lowest power
  • Smallest trunk

BMW X3 (G01) M40i

  • Has 20 hp more
  • Has 90 km (56 mi) more estimated range
  • Has 269 L more trunk volume

Pros

  • Most powerful
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z4 (G29) M40i
BMW X3 (G01) M40i
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