Car comparison

BMW 3 Series Touring (G21) M340ivsBMW 5 Series Touring (G31) M550d

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

New comparison

BMW 3 Series Touring (G21)

M340i

374 hp2998 ccGasolineAWDAutomaticTurbochargedWagon / estate2019-2020
VS

BMW 5 Series Touring (G31)

M550d

400 hp2993 ccDieselAWDAutomaticTurbochargedWagon / estate2017-2020

Comparison overview

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

Best choices

BMW 5 Series Touring (G31) M550d

  • Most powerful
    400 hp
    298 kW
  • Highest torque
    760 Nm
    561 lb-ft
  • Lowest combined fuel consumption
    6.7 L/100 km
    35.1 mpg US
    42.2 mpg UK
  • Lowest city consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest highway consumption
    6.1 L/100 km
    38.6 mpg US
    46.3 mpg UK
  • Best estimated range
    985 km
    612 mi
  • Largest trunk
    570 L
  • Best overall score
    82/100
  • Best performance score
    79/100
  • Best economy score
    89/100
  • Best practicality score
    87/100

BMW 3 Series Touring (G21) M340i

  • Quickest 0-100 km/h
    4.5 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,770 kg
    3,902 lb
  • Best power-to-weight
    211 hp/t
    158 kW/t
    4.7 kg/hp
  • Lowest CO2 emissions
    172 g/km

Specification comparison

Specification comparison
ModelBMW3 Series Touring (G21)M340iBMW5 Series Touring (G31)M550d
Power
374hp279kW
400hp298kW
Torque
500Nm369lb-ft
760Nm561lb-ft
Curb weight
1,770kg3,902lb
1,955kg4,310lb
Gross weight
2,365kg5,214lb
2,620kg5,776lb
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
44.2s99% target: 257 km/h / 160 mph
Calculated
48.4s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.5s
4.6s
0-200 km/h
13.8s
Calculated
14.6s
Calculated
0-60 mph
4.3s
Calculated
4.4s
Calculated
Fuel consumption
7.6L/100 km30.9mpg US37.2mpg UK
6.7L/100 km35.1mpg US42.2mpg UK
Fuel consumption city
9.7L/100 km24.2mpg US29.1mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
6.1L/100 km38.6mpg US46.3mpg UK
Quarter mile
12.4s
Calculated
12.6s
Calculated
Power-to-weight
211hp/t158kW/t96hp/1000 lb
Calculated
205hp/t153kW/t93hp/1000 lb
Calculated
Torque-to-weight
282Nm/t189lb-ft/ton
Calculated
389Nm/t260lb-ft/ton
Calculated
Estimated range
776km482mi
Calculated
985km612mi
Calculated
Displacement
2,998cc183cu in
2,993cc183cu in
Length
4,713mm186in
4,962mm195in
Width
1,827mm72in
1,868mm74in
Height
1,440mm57in
1,488mm59in
Wheelbase
2,851mm112in
2,975mm117in
Front track
1,583mm62in
-
Rear track
1,567mm62in
-
Ground clearance
130mm5in
-
Trunk volume
500L
570L
Max trunk volume
1,510L
1,700L
Doors
5
5
Seats
5
5
Fuel tank
59L
66L
CO2 emissions
172g/km
176g/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 Touring (G21) M340iBMW 5 Series Touring (G31) M550dPowerTorque
  • BMW 3 Series Touring (G21) M340i: Power / Torque
  • BMW 5 Series Touring (G31) M550d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW3 Series Touring (G21)M340i5,500-6,500 rpm1,850-5,000 rpm6,750 rpm
BMW5 Series Touring (G31)M550d4,400 rpm2,000-3,000 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW3 Series Touring (G21)M340iBMW5 Series Touring (G31)M550d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.4 s
0-100 km/h
0-62 mph
4.5 s
4.6 s
0-200 km/h
0-124 mph
13.8 s
14.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.6 s
1/8 mile
201 m
8.2 s
8.3 s
1000 ft
305 m
10.5 s
10.6 s
1/4 mile
402 m
12.4 s
12.6 s
Trap speed
1/4 mile
402 m
191 km/h
118 mph
187 km/h
116 mph

Power comparison

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

Chart data table
VehicleValue
BMW3 Series Touring (G21)M340i
374 hp
279 kW
BMW5 Series Touring (G31)M550d
400 hp
298 kW

BMW 5 Series Touring (G31) M550d has 26 hp more than BMW 3 Series Touring (G21) M340i.

The biggest power difference is between BMW 3 Series Touring (G21) M340i and BMW 5 Series Touring (G31) M550d: 26 hp (19 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW3 Series Touring (G21)M340i
500 Nm
369 lb-ft
BMW5 Series Touring (G31)M550d
760 Nm
561 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW3 Series Touring (G21)M340i
1,770 kg
3,902 lb
BMW5 Series Touring (G31)M550d
1,955 kg
4,310 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 Touring (G21)M340i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW5 Series Touring (G31)M550d
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 Touring (G21)M340i4.5 s
BMW5 Series Touring (G31)M550d4.6 s

Although BMW 5 Series Touring (G31) M550d has more power, BMW 3 Series Touring (G21) M340i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 3 Series Touring (G21) M340i and BMW 5 Series Touring (G31) M550d: 0.1 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 Touring (G21)M340i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMW5 Series Touring (G31)M550d
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

The biggest fuel consumption difference is between BMW 5 Series Touring (G31) M550d and BMW 3 Series Touring (G21) M340i: 0.9 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 Touring (G21)M340i
211 hp/t
158 kW/t
4.7 kg/hp
BMW5 Series Touring (G31)M550d
205 hp/t
153 kW/t
4.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW3 Series Touring (G21)M340i
776 km
482 mi
BMW5 Series Touring (G31)M550d
985 km
612 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW3 Series Touring (G21)M340i
374 hp
279 kW
4.5 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW5 Series Touring (G31)M550d
400 hp
298 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 Touring (G21)M340i
Power
374 hp
279 kW
0-100 km/h4.5 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
BMW5 Series Touring (G31)M550d
Power
400 hp
298 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
570 L
20.1 cu ft
Length
4,962 mm
195.4 in
Height
1,488 mm
58.6 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 Touring (G21)M340i
Power
374 hp
279 kW
0-100 km/h4.5 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMW5 Series Touring (G31)M550d
Power
400 hp
298 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

BMW 5 Series Touring (G31) M550d 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 Touring (G21)M340i
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
4.5 s
BMW5 Series Touring (G31)M550d
6.7 L/100 km
35.1 mpg US
42.2 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 Touring (G21)M340i
211 hp/t
158 kW/t
4.7 kg/hp
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
BMW5 Series Touring (G31)M550d
205 hp/t
153 kW/t
4.9 kg/hp
6.7 L/100 km
35.1 mpg US
42.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW3 Series Touring (G21)M340iBMW5 Series Touring (G31)M550d
Power
374 hp
279 kW
400 hp
298 kW
Torque
500 Nm
369 lb-ft
760 Nm
561 lb-ft
Acceleration
4.5 s
4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,770 kg
3,902 lb
1,955 kg
4,310 lb
Fuel consumption
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
6.7 L/100 km
35.1 mpg US
42.2 mpg UK
Practicality
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
Doors/seats
5 doors
5 seats
Trunk
570 L
20.1 cu ft
Length
4,962 mm
195.4 in
Height
1,488 mm
58.6 in
Range score
776 km
482 mi
985 km
612 mi
CO2 score
172 g/km
176 g/km
Trunk score
500 L
17.7 cu ft
570 L
20.1 cu ft
Power-to-weight score
211 hp/t
158 kW/t
4.7 kg/hp
205 hp/t
153 kW/t
4.9 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 Touring (G21) M340iBMW 5 Series Touring (G31) M550d
Consumption7.6 L/100 km30.9 mpg US37.2 mpg UK6.7 L/100 km35.1 mpg US42.2 mpg UK
Cost / 100 km13.30 LC100 km11.73 LC100 km
Cost / 100 mi21.40 LC100 mi18.87 LC100 mi
Annual fuel used1,140 L301 US gal251 UK gal1,005 L265 US gal221 UK gal
Annual fuel cost1,995 LC/year1,759 LC/year

Head-to-head comparisons

BMW 3 Series Touring (G21) M340i

  • Is 185 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 7 hp/t better power-to-weight
  • Emits 4 g/km less CO2

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk

BMW 5 Series Touring (G31) M550d

  • Has 26 hp more
  • Has 260 Nm more
  • Uses 0.9 L/100 km less fuel
  • Has 209 km (130 mi) more estimated range
  • Has 70 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 3 Series Touring (G21) M340i
BMW 5 Series Touring (G31) M550d
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