Car comparison

BMW 3 Series Sedan (G20) M340ivsBMW X3 (G01) M40i

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

New comparison

BMW 3 Series Sedan (G20)

M340i

374 hp2998 ccGasolineAWDAutomaticTurbochargedSedan2019-2022
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 3 Series Sedan (G20) M340i

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    374 hp
    279 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,670 kg
    3,682 lb
  • Best power-to-weight
    224 hp/t
    167 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
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest highway consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Lowest CO2 emissions
    168 g/km
  • Best estimated range
    797 km
    495 mi
  • Best overall score
    75/100
  • Best performance score
    75/100
  • Best economy score
    87/100

Specification comparison

Specification comparison
ModelBMW3 Series Sedan (G20)M340iBMWX3 (G01)M40i
Power
374hp279kW
360hp268kW
Torque
500Nm369lb-ft
500Nm369lb-ft
Curb weight
1,670kg3,682lb
1,845kg4,068lb
Gross weight
2,245kg4,949lb
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
40.8s99% target: 262 km/h / 163 mph
Calculated
69.7s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
4.4s
4.8s
0-200 km/h
12.8s
Calculated
19.4s
Calculated
0-60 mph
4.2s
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
9.6L/100 km24.5mpg US29.4mpg UK
10.1L/100 km23.3mpg US28.0mpg UK
Fuel consumption highway
6.1L/100 km38.6mpg US46.3mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
12.2s
Calculated
13.1s
Calculated
Power-to-weight
224hp/t167kW/t102hp/1000 lb
Calculated
195hp/t146kW/t89hp/1000 lb
Calculated
Torque-to-weight
299Nm/t200lb-ft/ton
Calculated
271Nm/t181lb-ft/ton
Calculated
Estimated range
797km495mi
Calculated
793km493mi
Calculated
Displacement
2,998cc183cu in
2,998cc183cu in
Length
4,713mm186in
4,716mm186in
Width
1,827mm72in
1,897mm75in
Height
1,440mm57in
1,676mm66in
Wheelbase
2,851mm112in
2,864mm113in
Front track
1,583mm62in
1,615mm64in
Rear track
1,567mm62in
1,594mm63in
Ground clearance
130mm5in
204mm8in
Trunk volume
480L
550L
Max trunk volume-
1,600L
Doors
4
5
Seats
5
5
Fuel tank
59L
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 3 Series Sedan (G20) M340iBMW X3 (G01) M40iPowerTorque
  • BMW 3 Series Sedan (G20) M340i: Power / Torque
  • BMW X3 (G01) M40i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW3 Series Sedan (G20)M340i5,500-6,500 rpm1,850-5,000 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
MetricBMW3 Series Sedan (G20)M340iBMWX3 (G01)M40i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.5 s
0-100 km/h
0-62 mph
4.4 s
4.8 s
0-200 km/h
0-124 mph
12.8 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
2.3 s
2.0 s
330 ft
101 m
5.6 s
5.5 s
1/8 mile
201 m
8.2 s
8.4 s
1000 ft
305 m
10.4 s
10.9 s
1/4 mile
402 m
12.2 s
13.1 s
Trap speed
1/4 mile
402 m
196 km/h
122 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340i
374 hp
279 kW
BMWX3 (G01)M40i
360 hp
268 kW

BMW 3 Series Sedan (G20) M340i has 14 hp more than BMW X3 (G01) M40i.

The biggest power difference is between BMW X3 (G01) M40i and BMW 3 Series Sedan (G20) M340i: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340i
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
BMW3 Series Sedan (G20)M340i
1,670 kg
3,682 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
BMW3 Series Sedan (G20)M340i
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
BMW3 Series Sedan (G20)M340i4.4 s
BMWX3 (G01)M40i4.8 s

The biggest 0-100 km/h difference is between BMW 3 Series Sedan (G20) M340i and BMW X3 (G01) M40i: 0.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340i
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 3 Series Sedan (G20) M340i 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
BMW3 Series Sedan (G20)M340i
224 hp/t
167 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
BMW3 Series Sedan (G20)M340i
797 km
495 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
BMW3 Series Sedan (G20)M340i
374 hp
279 kW
4.4 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
BMW3 Series Sedan (G20)M340i
Power
374 hp
279 kW
0-100 km/h4.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,713 mm
185.6 in
Height
1,440 mm
56.7 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
BMW3 Series Sedan (G20)M340i
Power
374 hp
279 kW
0-100 km/h4.4 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 3 Series Sedan (G20) M340i 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
BMW3 Series Sedan (G20)M340i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
4.4 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
BMW3 Series Sedan (G20)M340i
224 hp/t
167 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
VehicleBMW3 Series Sedan (G20)M340iBMWX3 (G01)M40i
Power
374 hp
279 kW
360 hp
268 kW
Torque
500 Nm
369 lb-ft
500 Nm
369 lb-ft
Acceleration
4.4 s
4.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
250 km/h
155 mph
Lightness
1,670 kg
3,682 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
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,713 mm
185.6 in
Height
1,440 mm
56.7 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
797 km
495 mi
793 km
493 mi
CO2 score
168 g/km
187 g/km
Trunk score
480 L
17.0 cu ft
550 L
19.4 cu ft
Power-to-weight score
224 hp/t
167 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 3 Series Sedan (G20) M340iBMW 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 3 Series Sedan (G20) M340i

  • Has 14 hp more
  • Is 175 kg lighter
  • Is 0.4 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 29 hp/t better power-to-weight
  • Has 5 km (3 mi) more estimated range
  • Emits 19 g/km less CO2

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 X3 (G01) M40i

  • Has 70 L more trunk volume

Pros

  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 3 Series Sedan (G20) M340i
BMW X3 (G01) M40i
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