Car comparison

BMW X3 (G01 LCI) · Facelift 2021 M40ivsBMW X4 (G02 LCI) · Facelift 2021 M40i

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

New comparison

BMW X3 (G01 LCI) · Facelift 2021

M40i

360 hp2998 ccGasolineAWDAutomaticTurbocharged2021-2024
VS

BMW X4 (G02 LCI) · Facelift 2021

M40i

360 hp2998 ccGasolineAWDAutomaticTurbocharged2021-2025

Comparison overview

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

Best choices

BMW X3 (G01 LCI) Facelift 2021 M40i

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    360 hp
    268 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,910 kg
    4,211 lb
  • Best power-to-weight
    188 hp/t
    141 kW/t
    5.3 kg/hp
  • Lowest combined fuel consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Best estimated range
    684 km
    425 mi
  • Largest trunk
    550 L
  • Best overall score
    73/100
  • Best performance score
    71/100
  • Best economy score
    81/100
  • Best practicality score
    77/100

Specification comparison

Specification comparison
ModelBMWX3 (G01 LCI)Facelift 2021M40iBMWX4 (G02 LCI)Facelift 2021M40i
Power
360hp268kW
360hp268kW
Torque
500Nm369lb-ft
500Nm369lb-ft
Curb weight
1,910kg4,211lb
1,920kg4,233lb
Gross weight
2,485kg5,478lb
2,500kg5,512lb
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
74.2s99% target: 257 km/h / 160 mph
Calculated
76.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
4.9s
0-200 km/h
18.6s
Calculated
18.9s
Calculated
0-60 mph
4.6s
Calculated
4.6s
Calculated
Fuel consumption
9.5L/100 km24.8mpg US29.7mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile
13.1s
Calculated
13.1s
Calculated
Power-to-weight
188hp/t141kW/t85hp/1000 lb
Calculated
188hp/t140kW/t85hp/1000 lb
Calculated
Torque-to-weight
262Nm/t175lb-ft/ton
Calculated
260Nm/t174lb-ft/ton
Calculated
Estimated range
684km425mi
Calculated
684km425mi
Calculated
Displacement
2,998cc183cu in
2,998cc183cu in
Length
4,713mm186in
4,752mm187in
Width
1,897mm75in
1,938mm76in
Height
1,676mm66in
1,621mm64in
Wheelbase
2,864mm113in
2,864mm113in
Front track
1,615mm64in
1,615mm64in
Rear track
1,594mm63in
1,624mm64in
Ground clearance
204mm8in
204mm8in
Trunk volume
550L
525L
Max trunk volume
1,600L
1,430L
Doors
5
5
Seats
5
5
Fuel tank
65L
65L

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 LCI) Facelift 2021 M40iBMW X4 (G02 LCI) Facelift 2021 M40iPowerTorque
  • BMW X3 (G01 LCI) Facelift 2021 M40i: Power / Torque
  • BMW X4 (G02 LCI) Facelift 2021 M40i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWX3 (G01 LCI)Facelift 2021M40i5,200-6,500 rpm1,900-5,000 rpm6,750 rpm
BMWX4 (G02 LCI)Facelift 2021M40i5,200-6,500 rpm1,900-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWX3 (G01 LCI)Facelift 2021M40iBMWX4 (G02 LCI)Facelift 2021M40i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
4.6 s
0-100 km/h
0-62 mph
4.9 s
4.9 s
0-200 km/h
0-124 mph
18.6 s
18.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.5 s
8.5 s
1000 ft
305 m
11.0 s
11.0 s
1/4 mile
402 m
13.1 s
13.1 s
Trap speed
1/4 mile
402 m
173 km/h
108 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
BMWX3 (G01 LCI)Facelift 2021M40i
360 hp
268 kW
BMWX4 (G02 LCI)Facelift 2021M40i
360 hp
268 kW

Torque comparison

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

Chart data table
VehicleValue
BMWX3 (G01 LCI)Facelift 2021M40i
500 Nm
369 lb-ft
BMWX4 (G02 LCI)Facelift 2021M40i
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWX3 (G01 LCI)Facelift 2021M40i
1,910 kg
4,211 lb
BMWX4 (G02 LCI)Facelift 2021M40i
1,920 kg
4,233 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 LCI)Facelift 2021M40i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX4 (G02 LCI)Facelift 2021M40i
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
BMWX3 (G01 LCI)Facelift 2021M40i4.9 s
BMWX4 (G02 LCI)Facelift 2021M40i4.9 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 LCI)Facelift 2021M40i
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
BMWX4 (G02 LCI)Facelift 2021M40i
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMWX3 (G01 LCI)Facelift 2021M40i
188 hp/t
141 kW/t
5.3 kg/hp
BMWX4 (G02 LCI)Facelift 2021M40i
188 hp/t
140 kW/t
5.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWX3 (G01 LCI)Facelift 2021M40i
684 km
425 mi
BMWX4 (G02 LCI)Facelift 2021M40i
684 km
425 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWX3 (G01 LCI)Facelift 2021M40i
360 hp
268 kW
4.9 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMWX4 (G02 LCI)Facelift 2021M40i
360 hp
268 kW
4.9 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
BMWX3 (G01 LCI)Facelift 2021M40i
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,713 mm
185.6 in
Height
1,676 mm
66.0 in
BMWX4 (G02 LCI)Facelift 2021M40i
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
525 L
18.5 cu ft
Length
4,752 mm
187.1 in
Height
1,621 mm
63.8 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 LCI)Facelift 2021M40i
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
BMWX4 (G02 LCI)Facelift 2021M40i
Power
360 hp
268 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

BMW X3 (G01 LCI) Facelift 2021 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
BMWX3 (G01 LCI)Facelift 2021M40i
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.9 s
BMWX4 (G02 LCI)Facelift 2021M40i
9.5 L/100 km
24.8 mpg US
29.7 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
BMWX3 (G01 LCI)Facelift 2021M40i
188 hp/t
141 kW/t
5.3 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
BMWX4 (G02 LCI)Facelift 2021M40i
188 hp/t
140 kW/t
5.3 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWX3 (G01 LCI)Facelift 2021M40iBMWX4 (G02 LCI)Facelift 2021M40i
Power
360 hp
268 kW
360 hp
268 kW
Torque
500 Nm
369 lb-ft
500 Nm
369 lb-ft
Acceleration
4.9 s
4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,910 kg
4,211 lb
1,920 kg
4,233 lb
Fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
550 L
19.4 cu ft
Length
4,713 mm
185.6 in
Height
1,676 mm
66.0 in
Doors/seats
5 doors
5 seats
Trunk
525 L
18.5 cu ft
Length
4,752 mm
187.1 in
Height
1,621 mm
63.8 in
Range score
684 km
425 mi
684 km
425 mi
Trunk score
550 L
19.4 cu ft
525 L
18.5 cu ft
Power-to-weight score
188 hp/t
141 kW/t
5.3 kg/hp
188 hp/t
140 kW/t
5.3 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 LCI) Facelift 2021 M40iBMW X4 (G02 LCI) Facelift 2021 M40i
Consumption9.5 L/100 km24.8 mpg US29.7 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km16.63 LC100 km16.63 LC100 km
Cost / 100 mi26.76 LC100 mi26.76 LC100 mi
Annual fuel used1,425 L376 US gal313 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,494 LC/year2,494 LC/year

Head-to-head comparisons

BMW X3 (G01 LCI) Facelift 2021 M40i

  • Is 10 kg lighter
  • Has 1 hp/t better power-to-weight
  • Has 25 L more trunk volume

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
  • Largest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW X3 (G01 LCI) M40i
BMW X4 (G02 LCI) M40i
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BMW X3 (G01 LCI) · Facelift 2021 M40i vs BMW X4 (G02 LCI) · Facelift 2021 M40i - car comparison - FastVsFaster