Car comparison

BMW 2 Series Convertible (F23) M240ivsBMW 4 Series Convertible (F33) · Facelift 2017 440i

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

New comparison

BMW 2 Series Convertible (F23)

M240i

340 hp2998 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2016-2017
VS

BMW 4 Series Convertible (F33) · Facelift 2017

440i

326 hp2998 ccGasolineRWDAutomaticTurbochargedCabriolet / convertible2017-2020

Comparison overview

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

Best choices

BMW 2 Series Convertible (F23) M240i

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lightest
    1,680 kg
    3,704 lb
  • Best power-to-weight
    202 hp/t
    151 kW/t
    4.9 kg/hp
  • Best overall score
    62/100
  • Best performance score
    71/100

BMW 4 Series Convertible (F33) Facelift 2017 440i

  • Lowest combined fuel consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest city consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest highway consumption
    5.8 L/100 km
    40.6 mpg US
    48.7 mpg UK
  • Lowest CO2 emissions
    167 g/km
  • Best estimated range
    833 km
    518 mi
  • Largest trunk
    370 L
  • Best economy score
    87/100
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelBMW2 Series Convertible (F23)M240iBMW4 Series Convertible (F33)Facelift 2017440i
Power
340hp254kW
326hp243kW
Torque
500Nm369lb-ft
450Nm332lb-ft
Curb weight
1,680kg3,704lb
1,770kg3,902lb
Gross weight
2,110kg4,652lb
2,230kg4,916lb
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
67.4s99% target: 257 km/h / 160 mph
Calculated
74.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
5.4s
0-200 km/h
17.2s
Calculated
19.7s
Calculated
0-60 mph
4.4s
Calculated
5.1s
Calculated
Fuel consumption
7.8L/100 km30.2mpg US36.2mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Fuel consumption city
10.4L/100 km22.6mpg US27.2mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile
12.8s
Calculated
13.5s
Calculated
Power-to-weight
202hp/t151kW/t92hp/1000 lb
Calculated
184hp/t137kW/t84hp/1000 lb
Calculated
Torque-to-weight
298Nm/t199lb-ft/ton
Calculated
254Nm/t170lb-ft/ton
Calculated
Estimated range
667km414mi
Calculated
833km518mi
Calculated
Displacement
2,998cc183cu in
2,998cc183cu in
Length
4,454mm175in
4,640mm183in
Width
1,774mm70in
1,825mm72in
Height
1,403mm55in
1,384mm54in
Wheelbase
2,690mm106in
2,810mm111in
Front track
1,516mm60in
1,544mm61in
Rear track
1,534mm60in
1,593mm63in
Ground clearance
130mm5in
130mm5in
Trunk volume
280L
370L
Max trunk volume
335L
-
Doors
2
2
Seats
4
4
Fuel tank
52L
60L
CO2 emissions
179g/km
167g/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 2 Series Convertible (F23) M240iBMW 4 Series Convertible (F33) Facelift 2017 440iPowerTorque
  • BMW 2 Series Convertible (F23) M240i: Power / Torque
  • BMW 4 Series Convertible (F33) Facelift 2017 440i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW2 Series Convertible (F23)M240i5,500 rpm1,520-4,500 rpm5,750 rpm
BMW4 Series Convertible (F33)Facelift 2017440i5,500 rpm1,380-5,000 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW2 Series Convertible (F23)M240iBMW4 Series Convertible (F33)Facelift 2017440i
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
5.1 s
0-100 km/h
0-62 mph
4.6 s
5.4 s
0-200 km/h
0-124 mph
17.2 s
19.7 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
2.0 s
2.2 s
330 ft
101 m
5.5 s
5.9 s
1/8 mile
201 m
8.3 s
8.8 s
1000 ft
305 m
10.7 s
11.4 s
1/4 mile
402 m
12.8 s
13.5 s
Trap speed
1/4 mile
402 m
177 km/h
110 mph
170 km/h
106 mph

Power comparison

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

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
340 hp
254 kW
BMW4 Series Convertible (F33)Facelift 2017440i
326 hp
243 kW

BMW 2 Series Convertible (F23) M240i has 14 hp more than BMW 4 Series Convertible (F33) Facelift 2017 440i.

The biggest power difference is between BMW 4 Series Convertible (F33) Facelift 2017 440i and BMW 2 Series Convertible (F23) M240i: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
500 Nm
369 lb-ft
BMW4 Series Convertible (F33)Facelift 2017440i
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
1,680 kg
3,704 lb
BMW4 Series Convertible (F33)Facelift 2017440i
1,770 kg
3,902 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)Facelift 2017440i
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
BMW2 Series Convertible (F23)M240i4.6 s
BMW4 Series Convertible (F33)Facelift 2017440i5.4 s

The biggest 0-100 km/h difference is between BMW 2 Series Convertible (F23) M240i and BMW 4 Series Convertible (F33) Facelift 2017 440i: 0.8 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Convertible (F33)Facelift 2017440i
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (F33) Facelift 2017 440i and BMW 2 Series Convertible (F23) M240i: 0.6 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
BMW2 Series Convertible (F23)M240i
202 hp/t
151 kW/t
4.9 kg/hp
BMW4 Series Convertible (F33)Facelift 2017440i
184 hp/t
137 kW/t
5.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW2 Series Convertible (F23)M240i
667 km
414 mi
BMW4 Series Convertible (F33)Facelift 2017440i
833 km
518 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW2 Series Convertible (F23)M240i
340 hp
254 kW
4.6 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)Facelift 2017440i
326 hp
243 kW
5.4 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
BMW2 Series Convertible (F23)M240i
Power
340 hp
254 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
280 L
9.9 cu ft
Length
4,454 mm
175.4 in
Height
1,403 mm
55.2 in
BMW4 Series Convertible (F33)Facelift 2017440i
Power
326 hp
243 kW
0-100 km/h5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,640 mm
182.7 in
Height
1,384 mm
54.5 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
BMW2 Series Convertible (F23)M240i
Power
340 hp
254 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Convertible (F33)Facelift 2017440i
Power
326 hp
243 kW
0-100 km/h5.4 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 2 Series Convertible (F23) M240i 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
BMW2 Series Convertible (F23)M240i
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
4.6 s
BMW4 Series Convertible (F33)Facelift 2017440i
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
5.4 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
BMW2 Series Convertible (F23)M240i
202 hp/t
151 kW/t
4.9 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
BMW4 Series Convertible (F33)Facelift 2017440i
184 hp/t
137 kW/t
5.4 kg/hp
7.2 L/100 km
32.7 mpg US
39.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW2 Series Convertible (F23)M240iBMW4 Series Convertible (F33)Facelift 2017440i
Power
340 hp
254 kW
326 hp
243 kW
Torque
500 Nm
369 lb-ft
450 Nm
332 lb-ft
Acceleration
4.6 s
5.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,680 kg
3,704 lb
1,770 kg
3,902 lb
Fuel consumption
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
280 L
9.9 cu ft
Length
4,454 mm
175.4 in
Height
1,403 mm
55.2 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,640 mm
182.7 in
Height
1,384 mm
54.5 in
Range score
667 km
414 mi
833 km
518 mi
CO2 score
179 g/km
167 g/km
Trunk score
280 L
9.9 cu ft
370 L
13.1 cu ft
Power-to-weight score
202 hp/t
151 kW/t
4.9 kg/hp
184 hp/t
137 kW/t
5.4 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 2 Series Convertible (F23) M240iBMW 4 Series Convertible (F33) Facelift 2017 440i
Consumption7.8 L/100 km30.2 mpg US36.2 mpg UK7.2 L/100 km32.7 mpg US39.2 mpg UK
Cost / 100 km13.65 LC100 km12.60 LC100 km
Cost / 100 mi21.97 LC100 mi20.28 LC100 mi
Annual fuel used1,170 L309 US gal257 UK gal1,080 L285 US gal238 UK gal
Annual fuel cost2,048 LC/year1,890 LC/year

Head-to-head comparisons

BMW 2 Series Convertible (F23) M240i

  • Has 14 hp more
  • Has 50 Nm more
  • Is 90 kg lighter
  • Is 0.8 s quicker from 0-100 km/h
  • Has 18 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

BMW 4 Series Convertible (F33) Facelift 2017 440i

  • Uses 0.6 L/100 km less fuel
  • Has 167 km (104 mi) more estimated range
  • Has 90 L more trunk volume
  • Emits 12 g/km less CO2

Pros

  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 2 Series Convertible (F23) M240i
BMW 4 Series Convertible (F33) 440i
Compare selected cars
2 vehicles selected

Popular comparisons

M240i
M240i
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Coupe (F22)M240i
440i
440i
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Convertible (F33)440i
M240i
M235i
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Gran Coupe (F44)M235i
440i
M440d
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Convertible (G23)M440d
M240i
M240i
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Coupe (G42)M240i
440i
440i
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Coupe (F32)Facelift 2017440i
M240i
M235
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Gran Coupe (F74)M235
440i
440i
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Gran Coupe (F36)Facelift 2017440i
M240i
225i
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Active Tourer (F45)225i
440i
440i
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Gran Coupe (F36)440i
M240i
220i
VS
BMW2 Series Convertible (F23)M240ivsBMW2 Series Gran Tourer (F46)220i
440i
440i
VS
BMW4 Series Convertible (F33)Facelift 2017440ivsBMW4 Series Coupe (F32)440i
BMW 2 Series Convertible (F23) M240i vs BMW 4 Series Convertible (F33) · Facelift 2017 440i - car comparison - FastVsFaster