Car comparison

BMW 4 Series Convertible (G23) M440dvsBMW 4 Series Convertible (F33) · Facelift 2017 435d

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

New comparison

BMW 4 Series Convertible (G23)

M440d

340 hp2993 ccDieselAWDAutomaticTurbochargedCabriolet / convertible2021-2024
VS

BMW 4 Series Convertible (F33) · Facelift 2017

435d

313 hp2993 ccDieselAWDAutomaticTurbochargedCabriolet / convertible2017-2020

Comparison overview

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

Best choices

BMW 4 Series Convertible (G23) M440d

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    700 Nm
    516 lb-ft
  • Best power-to-weight
    172 hp/t
    128 kW/t
    5.8 kg/hp
  • Best overall score
    65/100
  • Best performance score
    74/100

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (G23)M440dBMW4 Series Convertible (F33)Facelift 2017435d
Power
340hp254kW
313hp233kW
Torque
700Nm516lb-ft
630Nm465lb-ft
Curb weight
1,980kg4,365lb
1,850kg4,079lb
Gross weight
2,480kg5,467lb
2,290kg5,049lb
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
70.1s99% target: 257 km/h / 160 mph
Calculated
81.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.0s
5.7s
0-200 km/h
18.3s
Calculated
21.1s
Calculated
0-60 mph
4.7s
Calculated
5.4s
Calculated
Fuel consumption
6.6L/100 km35.6mpg US42.8mpg UK
5.9L/100 km39.9mpg US47.9mpg UK
Fuel consumption city-
7L/100 km33.6mpg US40.4mpg UK
Fuel consumption highway-
5.3L/100 km44.4mpg US53.3mpg UK
Quarter mile
13.2s
Calculated
13.8s
Calculated
Power-to-weight
172hp/t128kW/t78hp/1000 lb
Calculated
169hp/t126kW/t77hp/1000 lb
Calculated
Torque-to-weight
354Nm/t237lb-ft/ton
Calculated
341Nm/t228lb-ft/ton
Calculated
Estimated range
894km555mi
Calculated
966km600mi
Calculated
Displacement
2,993cc183cu in
2,993cc183cu in
Length
4,768mm188in
4,640mm183in
Width
1,852mm73in
1,825mm72in
Height
1,384mm54in
1,399mm55in
Wheelbase
2,851mm112in
2,810mm111in
Front track
1,573mm62in
1,543mm61in
Rear track
1,612mm63in
1,593mm63in
Ground clearance-
145mm6in
Trunk volume
300L
370L
Max trunk volume
385L
-
Doors
2
2
Seats
4
4
Fuel tank
59L
57L
CO2 emissions-
155g/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 4 Series Convertible (G23) M440dBMW 4 Series Convertible (F33) Facelift 2017 435dPowerTorque
  • BMW 4 Series Convertible (G23) M440d: Power / Torque
  • BMW 4 Series Convertible (F33) Facelift 2017 435d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (G23)M440d4,400 rpm1,750-2,250 rpm4,650 rpm
BMW4 Series Convertible (F33)Facelift 2017435d4,400 rpm1,500-2,500 rpm4,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (G23)M440dBMW4 Series Convertible (F33)Facelift 2017435d
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.4 s
0-100 km/h
0-62 mph
5.0 s
5.7 s
0-200 km/h
0-124 mph
18.3 s
21.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.3 s
330 ft
101 m
5.7 s
6.0 s
1/8 mile
201 m
8.6 s
9.0 s
1000 ft
305 m
11.1 s
11.6 s
1/4 mile
402 m
13.2 s
13.8 s
Trap speed
1/4 mile
402 m
174 km/h
108 mph
167 km/h
104 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
340 hp
254 kW
BMW4 Series Convertible (F33)Facelift 2017435d
313 hp
233 kW

BMW 4 Series Convertible (G23) M440d has 27 hp more than BMW 4 Series Convertible (F33) Facelift 2017 435d.

The biggest power difference is between BMW 4 Series Convertible (F33) Facelift 2017 435d and BMW 4 Series Convertible (G23) M440d: 27 hp (20 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
700 Nm
516 lb-ft
BMW4 Series Convertible (F33)Facelift 2017435d
630 Nm
465 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
1,980 kg
4,365 lb
BMW4 Series Convertible (F33)Facelift 2017435d
1,850 kg
4,079 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)Facelift 2017435d
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
BMW4 Series Convertible (G23)M440d5.0 s
BMW4 Series Convertible (F33)Facelift 2017435d5.7 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (G23) M440d and BMW 4 Series Convertible (F33) Facelift 2017 435d: 0.7 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)Facelift 2017435d
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (F33) Facelift 2017 435d and BMW 4 Series Convertible (G23) M440d: 0.7 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
BMW4 Series Convertible (G23)M440d
172 hp/t
128 kW/t
5.8 kg/hp
BMW4 Series Convertible (F33)Facelift 2017435d
169 hp/t
126 kW/t
5.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (G23)M440d
894 km
555 mi
BMW4 Series Convertible (F33)Facelift 2017435d
966 km
600 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (G23)M440d
340 hp
254 kW
5.0 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (F33)Facelift 2017435d
313 hp
233 kW
5.7 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
BMW4 Series Convertible (G23)M440d
Power
340 hp
254 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,768 mm
187.7 in
Height
1,384 mm
54.5 in
BMW4 Series Convertible (F33)Facelift 2017435d
Power
313 hp
233 kW
0-100 km/h5.7 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
1,399 mm
55.1 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
BMW4 Series Convertible (G23)M440d
Power
340 hp
254 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)Facelift 2017435d
Power
313 hp
233 kW
0-100 km/h5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

BMW 4 Series Convertible (G23) M440d 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
BMW4 Series Convertible (G23)M440d
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
5.0 s
BMW4 Series Convertible (F33)Facelift 2017435d
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
5.7 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
BMW4 Series Convertible (G23)M440d
172 hp/t
128 kW/t
5.8 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)Facelift 2017435d
169 hp/t
126 kW/t
5.9 kg/hp
5.9 L/100 km
39.9 mpg US
47.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (G23)M440dBMW4 Series Convertible (F33)Facelift 2017435d
Power
340 hp
254 kW
313 hp
233 kW
Torque
700 Nm
516 lb-ft
630 Nm
465 lb-ft
Acceleration
5.0 s
5.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,980 kg
4,365 lb
1,850 kg
4,079 lb
Fuel consumption
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
5.9 L/100 km
39.9 mpg US
47.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,768 mm
187.7 in
Height
1,384 mm
54.5 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,640 mm
182.7 in
Height
1,399 mm
55.1 in
Range score
894 km
555 mi
966 km
600 mi
CO2 score
-
155 g/km
Trunk score
300 L
10.6 cu ft
370 L
13.1 cu ft
Power-to-weight score
172 hp/t
128 kW/t
5.8 kg/hp
169 hp/t
126 kW/t
5.9 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 4 Series Convertible (G23) M440dBMW 4 Series Convertible (F33) Facelift 2017 435d
Consumption6.6 L/100 km35.6 mpg US42.8 mpg UK5.9 L/100 km39.9 mpg US47.9 mpg UK
Cost / 100 km11.55 LC100 km10.33 LC100 km
Cost / 100 mi18.59 LC100 mi16.62 LC100 mi
Annual fuel used990 L262 US gal218 UK gal885 L234 US gal195 UK gal
Annual fuel cost1,733 LC/year1,549 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (G23) M440d

  • Has 27 hp more
  • Has 70 Nm more
  • Is 0.7 s quicker from 0-100 km/h
  • Has 3 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

BMW 4 Series Convertible (F33) Facelift 2017 435d

  • Is 130 kg lighter
  • Uses 0.7 L/100 km less fuel
  • Has 72 km (45 mi) more estimated range
  • Has 70 L more trunk volume

Pros

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

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Convertible (G23) M440d
BMW 4 Series Convertible (F33) 435d
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