Car comparison

BMW M4 Convertible (G83) Competition 3.0vsBMW 4 Series Convertible (G23) M440i

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

New comparison

BMW M4 Convertible (G83)

Competition 3.0

510 hp2993 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2021-2024
VS

BMW 4 Series Convertible (G23)

M440i

374 hp2998 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2020-2024

Comparison overview

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

Best choices

BMW M4 Convertible (G83) Competition 3.0

  • Quickest 0-100 km/h
    3.7 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    510 hp
    380 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Best power-to-weight
    266 hp/t
    198 kW/t
    3.8 kg/hp
  • Largest trunk
    300 L
  • Best overall score
    71/100
  • Best performance score
    83/100
  • Best practicality score
    45/100

BMW 4 Series Convertible (G23) M440i

  • Lightest
    1,890 kg
    4,167 lb
  • Lowest combined fuel consumption
    7.4 L/100 km
    31.8 mpg US
    38.2 mpg UK
  • Best estimated range
    797 km
    495 mi
  • Best economy score
    87/100

Specification comparison

Specification comparison
ModelBMWM4 Convertible (G83)Competition 3.0BMW4 Series Convertible (G23)M440i
Power
510hp380kW
374hp279kW
Torque
650Nm479lb-ft
500Nm369lb-ft
Curb weight
1,920kg4,233lb
1,890kg4,167lb
Gross weight
2,345kg5,170lb
2,390kg5,269lb
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
49.1s99% target: 257 km/h / 160 mph
Calculated
65.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.7s
4.9s
0-200 km/h
13.2s
Calculated
17.6s
Calculated
0-60 mph
3.5s
Calculated
4.7s
Calculated
Fuel consumption
10.2L/100 km23.1mpg US27.7mpg UK
7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption city-
9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption highway-
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
11.8s
Calculated
13.0s
Calculated
Power-to-weight
266hp/t198kW/t120hp/1000 lb
Calculated
198hp/t148kW/t90hp/1000 lb
Calculated
Torque-to-weight
339Nm/t227lb-ft/ton
Calculated
265Nm/t177lb-ft/ton
Calculated
Estimated range
578km359mi
Calculated
797km495mi
Calculated
Displacement
2,993cc183cu in
2,998cc183cu in
Length
4,794mm189in
4,770mm188in
Width
1,887mm74in
1,852mm73in
Height
1,395mm55in
1,394mm55in
Wheelbase
2,857mm112in
2,851mm112in
Front track
1,617mm64in
1,575mm62in
Rear track
1,605mm63in
1,611mm63in
Ground clearance
121mm5in
126mm5in
Trunk volume
300L
300L
Max trunk volume
385L
385L
Doors
2
2
Seats
4
4
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 M4 Convertible (G83) Competition 3.0BMW 4 Series Convertible (G23) M440iPowerTorque
  • BMW M4 Convertible (G83) Competition 3.0: Power / Torque
  • BMW 4 Series Convertible (G23) M440i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWM4 Convertible (G83)Competition 3.06,250 rpm2,750-5,500 rpm7,200 rpm
BMW4 Series Convertible (G23)M440i5,500-6,500 rpm1,900-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWM4 Convertible (G83)Competition 3.0BMW4 Series Convertible (G23)M440i
Acceleration checkpoints
0-60 mph
0-97 km/h
3.5 s
4.7 s
0-100 km/h
0-62 mph
3.7 s
4.9 s
0-200 km/h
0-124 mph
13.2 s
17.6 s
Top speed
Unrestricted
260 km/h162 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
1.9 s
2.1 s
330 ft
101 m
5.0 s
5.7 s
1/8 mile
201 m
7.6 s
8.5 s
1000 ft
305 m
9.9 s
11.0 s
1/4 mile
402 m
11.8 s
13.0 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
176 km/h
110 mph

Power comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
510 hp
380 kW
BMW4 Series Convertible (G23)M440i
374 hp
279 kW

BMW M4 Convertible (G83) Competition 3.0 has 136 hp more than BMW 4 Series Convertible (G23) M440i.

The biggest power difference is between BMW 4 Series Convertible (G23) M440i and BMW M4 Convertible (G83) Competition 3.0: 136 hp (101 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
650 Nm
479 lb-ft
BMW4 Series Convertible (G23)M440i
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
1,920 kg
4,233 lb
BMW4 Series Convertible (G23)M440i
1,890 kg
4,167 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (G23)M440i
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
BMWM4 Convertible (G83)Competition 3.03.7 s
BMW4 Series Convertible (G23)M440i4.9 s

The biggest 0-100 km/h difference is between BMW M4 Convertible (G83) Competition 3.0 and BMW 4 Series Convertible (G23) M440i: 1.2 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
BMW4 Series Convertible (G23)M440i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (G23) M440i and BMW M4 Convertible (G83) Competition 3.0: 2.8 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
BMWM4 Convertible (G83)Competition 3.0
266 hp/t
198 kW/t
3.8 kg/hp
BMW4 Series Convertible (G23)M440i
198 hp/t
148 kW/t
5.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMWM4 Convertible (G83)Competition 3.0
578 km
359 mi
BMW4 Series Convertible (G23)M440i
797 km
495 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWM4 Convertible (G83)Competition 3.0
510 hp
380 kW
3.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (G23)M440i
374 hp
279 kW
4.9 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
BMWM4 Convertible (G83)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.7 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
4,794 mm
188.7 in
Height
1,395 mm
54.9 in
BMW4 Series Convertible (G23)M440i
Power
374 hp
279 kW
0-100 km/h4.9 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
4,770 mm
187.8 in
Height
1,394 mm
54.9 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
BMWM4 Convertible (G83)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
BMW4 Series Convertible (G23)M440i
Power
374 hp
279 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

BMW M4 Convertible (G83) Competition 3.0 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
BMWM4 Convertible (G83)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
3.7 s
BMW4 Series Convertible (G23)M440i
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
4.9 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
BMWM4 Convertible (G83)Competition 3.0
266 hp/t
198 kW/t
3.8 kg/hp
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
BMW4 Series Convertible (G23)M440i
198 hp/t
148 kW/t
5.1 kg/hp
7.4 L/100 km
31.8 mpg US
38.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMWM4 Convertible (G83)Competition 3.0BMW4 Series Convertible (G23)M440i
Power
510 hp
380 kW
374 hp
279 kW
Torque
650 Nm
479 lb-ft
500 Nm
369 lb-ft
Acceleration
3.7 s
4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,920 kg
4,233 lb
1,890 kg
4,167 lb
Fuel consumption
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,794 mm
188.7 in
Height
1,395 mm
54.9 in
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,770 mm
187.8 in
Height
1,394 mm
54.9 in
Range score
578 km
359 mi
797 km
495 mi
Trunk score
300 L
10.6 cu ft
300 L
10.6 cu ft
Power-to-weight score
266 hp/t
198 kW/t
3.8 kg/hp
198 hp/t
148 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 M4 Convertible (G83) Competition 3.0BMW 4 Series Convertible (G23) M440i
Consumption10.2 L/100 km23.1 mpg US27.7 mpg UK7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km17.85 LC100 km12.95 LC100 km
Cost / 100 mi28.73 LC100 mi20.84 LC100 mi
Annual fuel used1,530 L404 US gal337 UK gal1,110 L293 US gal244 UK gal
Annual fuel cost2,678 LC/year1,943 LC/year

Head-to-head comparisons

BMW M4 Convertible (G83) Competition 3.0

  • Has 136 hp more
  • Has 150 Nm more
  • Is 1.2 s quicker from 0-100 km/h
  • Has 68 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
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest

BMW 4 Series Convertible (G23) M440i

  • Is 30 kg lighter
  • Uses 2.8 L/100 km less fuel
  • Has 219 km (136 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW M4 Convertible (G83) Competition 3.0
BMW 4 Series Convertible (G23) M440i
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