Car comparison

BMW 3 Series Sedan (G20) M340dvsBMW 3 Series Touring (G21) M340i

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

New comparison

BMW 3 Series Sedan (G20)

M340d

340 hp2993 ccDieselAWDAutomaticTurbochargedSedan2020-2022
VS

BMW 3 Series Touring (G21)

M340i

374 hp2998 ccGasolineAWDAutomaticTurbochargedWagon / estate2020-2022

Comparison overview

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

Best choices

BMW 3 Series Sedan (G20) M340d

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Highest torque
    700 Nm
    516 lb-ft
  • Lowest combined fuel consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Lowest city consumption
    7.7 L/100 km
    30.5 mpg US
    36.7 mpg UK
  • Lowest highway consumption
    4.5 L/100 km
    52.3 mpg US
    62.8 mpg UK
  • Best estimated range
    1,035 km
    643 mi
  • Best performance score
    77/100
  • Best economy score
    91/100

BMW 3 Series Touring (G21) M340i

  • Most powerful
    374 hp
    279 kW
  • Lightest
    1,805 kg
    3,979 lb
  • Best power-to-weight
    207 hp/t
    155 kW/t
    4.8 kg/hp
  • Largest trunk
    500 L
  • Best overall score
    77/100
  • Best practicality score
    84/100

Specification comparison

Specification comparison
ModelBMW3 Series Sedan (G20)M340dBMW3 Series Touring (G21)M340i
Power
340hp254kW
374hp279kW
Torque
700Nm516lb-ft
500Nm369lb-ft
Curb weight
1,820kg4,012lb
1,805kg3,979lb
Gross weight
2,325kg5,126lb
2,400kg5,291lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
45.4s99% target: 262 km/h / 163 mph
Calculated
44.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
4.6s
0-200 km/h
13.7s
Calculated
14.1s
Calculated
0-60 mph
4.4s
Calculated
4.4s
Calculated
Fuel consumption
5.7L/100 km41.3mpg US49.6mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
7.7L/100 km30.5mpg US36.7mpg UK
9.2L/100 km25.6mpg US30.7mpg UK
Fuel consumption highway
4.5L/100 km52.3mpg US62.8mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
12.5s
Calculated
12.5s
Calculated
Power-to-weight
187hp/t139kW/t85hp/1000 lb
Calculated
207hp/t155kW/t94hp/1000 lb
Calculated
Torque-to-weight
385Nm/t257lb-ft/ton
Calculated
277Nm/t185lb-ft/ton
Calculated
Estimated range
1,035km643mi
Calculated
819km509mi
Calculated
Displacement
2,993cc183cu in
2,998cc183cu in
Length
4,713mm186in
4,713mm186in
Width
1,827mm72in
1,827mm72in
Height
1,440mm57in
1,440mm57in
Wheelbase
2,851mm112in
2,851mm112in
Front track
1,583mm62in
1,583mm62in
Rear track
1,567mm62in
1,567mm62in
Ground clearance
130mm5in
130mm5in
Trunk volume
480L
500L
Max trunk volume-
1,510L
Doors
4
5
Seats
5
5
Fuel tank
59L
59L

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) M340dBMW 3 Series Touring (G21) M340iPowerTorque
  • BMW 3 Series Sedan (G20) M340d: Power / Torque
  • BMW 3 Series Touring (G21) M340i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW3 Series Sedan (G20)M340d4,400 rpm1,750-2,250 rpm4,650 rpm
BMW3 Series Touring (G21)M340i5,500-6,500 rpm1,900-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW3 Series Sedan (G20)M340dBMW3 Series Touring (G21)M340i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.4 s
0-100 km/h
0-62 mph
4.6 s
4.6 s
0-200 km/h
0-124 mph
13.7 s
14.1 s
Top speed
Unrestricted
265 km/h165 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
2.3 s
2.3 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.3 s
8.3 s
1000 ft
305 m
10.6 s
10.6 s
1/4 mile
402 m
12.5 s
12.5 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
190 km/h
118 mph

Power comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340d
340 hp
254 kW
BMW3 Series Touring (G21)M340i
374 hp
279 kW

BMW 3 Series Touring (G21) M340i has 34 hp more than BMW 3 Series Sedan (G20) M340d.

The biggest power difference is between BMW 3 Series Sedan (G20) M340d and BMW 3 Series Touring (G21) M340i: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340d
700 Nm
516 lb-ft
BMW3 Series Touring (G21)M340i
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)M340d
1,820 kg
4,012 lb
BMW3 Series Touring (G21)M340i
1,805 kg
3,979 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)M340d
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW3 Series Touring (G21)M340i
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
BMW3 Series Sedan (G20)M340d4.6 s
BMW3 Series Touring (G21)M340i4.6 s

Although BMW 3 Series Touring (G21) M340i has more power, BMW 3 Series Sedan (G20) M340d is quicker from 0-100 km/h.

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)M340d
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
BMW3 Series Touring (G21)M340i
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

The biggest fuel consumption difference is between BMW 3 Series Sedan (G20) M340d and BMW 3 Series Touring (G21) M340i: 1.5 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)M340d
187 hp/t
139 kW/t
5.4 kg/hp
BMW3 Series Touring (G21)M340i
207 hp/t
155 kW/t
4.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW3 Series Sedan (G20)M340d
1,035 km
643 mi
BMW3 Series Touring (G21)M340i
819 km
509 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW3 Series Sedan (G20)M340d
340 hp
254 kW
4.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW3 Series Touring (G21)M340i
374 hp
279 kW
4.6 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
BMW3 Series Sedan (G20)M340d
Power
340 hp
254 kW
0-100 km/h4.6 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
BMW3 Series Touring (G21)M340i
Power
374 hp
279 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
4,713 mm
185.6 in
Height
1,440 mm
56.7 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)M340d
Power
340 hp
254 kW
0-100 km/h4.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
BMW3 Series Touring (G21)M340i
Power
374 hp
279 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

BMW 3 Series Sedan (G20) M340d 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)M340d
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
4.6 s
BMW3 Series Touring (G21)M340i
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
4.6 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)M340d
187 hp/t
139 kW/t
5.4 kg/hp
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
BMW3 Series Touring (G21)M340i
207 hp/t
155 kW/t
4.8 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW3 Series Sedan (G20)M340dBMW3 Series Touring (G21)M340i
Power
340 hp
254 kW
374 hp
279 kW
Torque
700 Nm
516 lb-ft
500 Nm
369 lb-ft
Acceleration
4.6 s
4.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,820 kg
4,012 lb
1,805 kg
3,979 lb
Fuel consumption
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 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
500 L
17.7 cu ft
Length
4,713 mm
185.6 in
Height
1,440 mm
56.7 in
Range score
1,035 km
643 mi
819 km
509 mi
Trunk score
480 L
17.0 cu ft
500 L
17.7 cu ft
Power-to-weight score
187 hp/t
139 kW/t
5.4 kg/hp
207 hp/t
155 kW/t
4.8 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 3 Series Sedan (G20) M340dBMW 3 Series Touring (G21) M340i
Consumption5.7 L/100 km41.3 mpg US49.6 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km9.98 LC100 km12.60 LC100 km
Cost / 100 mi16.05 LC100 mi20.28 LC100 mi
Annual fuel used855 L226 US gal188 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost1,496 LC/year1,890 LC/year

Head-to-head comparisons

BMW 3 Series Sedan (G20) M340d

  • Has 200 Nm more
  • Has 5 km/h (3 mph) higher top speed
  • Uses 1.5 L/100 km less fuel
  • Has 216 km (134 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Heaviest
  • Smallest trunk

BMW 3 Series Touring (G21) M340i

  • Has 34 hp more
  • Is 15 kg lighter
  • Has 20 hp/t better power-to-weight
  • Has 20 L more trunk volume

Pros

  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 3 Series Sedan (G20) M340d
BMW 3 Series Touring (G21) M340i
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