Car comparison

BMW 4 Series Coupe (G22) 430ivsBMW 4 Series Convertible (G23) 430d

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

New comparison

BMW 4 Series Coupe (G22)

430i

258 hp1998 ccGasolineRWDAutomaticTurbochargedCoupe2020-2024
VS

BMW 4 Series Convertible (G23)

430d

286 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2021-2024

Comparison overview

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

Best choices

BMW 4 Series Convertible (G23) 430d

  • Most powerful
    286 hp
    213 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Lowest combined fuel consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Best estimated range
    983 km
    611 mi
  • Best overall score
    61/100
  • Best performance score
    68/100
  • Best economy score
    91/100

BMW 4 Series Coupe (G22) 430i

  • Quickest 0-100 km/h
    5.8 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,545 kg
    3,406 lb
  • Best power-to-weight
    167 hp/t
    125 kW/t
    6.0 kg/hp
  • Largest trunk
    440 L
  • Best practicality score
    53/100

Specification comparison

Specification comparison
ModelBMW4 Series Coupe (G22)430iBMW4 Series Convertible (G23)430d
Power
258hp192kW
286hp213kW
Torque
400Nm295lb-ft
650Nm479lb-ft
Curb weight
1,545kg3,406lb
1,880kg4,145lb
Gross weight
2,030kg4,475lb
2,380kg5,247lb
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
78.1s99% target: 262 km/h / 163 mph
Calculated
83.8s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.8s
5.8s
0-200 km/h
20.1s
Calculated
21.5s
Calculated
0-60 mph
5.5s
Calculated
5.5s
Calculated
Fuel consumption
6.1L/100 km38.6mpg US46.3mpg UK
6L/100 km39.2mpg US47.1mpg UK
Fuel consumption city
7.7L/100 km30.5mpg US36.7mpg UK
-
Fuel consumption highway
5.3L/100 km44.4mpg US53.3mpg UK
-
Quarter mile
13.9s
Calculated
13.9s
Calculated
Power-to-weight
167hp/t125kW/t76hp/1000 lb
Calculated
152hp/t113kW/t69hp/1000 lb
Calculated
Torque-to-weight
259Nm/t173lb-ft/ton
Calculated
346Nm/t231lb-ft/ton
Calculated
Estimated range
967km601mi
Calculated
983km611mi
Calculated
Displacement
1,998cc122cu in
2,993cc183cu in
Length
4,768mm188in
4,768mm188in
Width
1,852mm73in
1,852mm73in
Height
1,383mm54in
1,384mm54in
Wheelbase
2,851mm112in
2,851mm112in
Front track
1,575mm62in
1,573mm62in
Rear track
1,611mm63in
1,612mm63in
Ground clearance
127mm5in
124mm5in
Trunk volume
440L
300L
Max trunk volume-
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 4 Series Coupe (G22) 430iBMW 4 Series Convertible (G23) 430dPowerTorque
  • BMW 4 Series Coupe (G22) 430i: Power / Torque
  • BMW 4 Series Convertible (G23) 430d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Coupe (G22)430i5,000-6,500 rpm1,550-4,400 rpm6,750 rpm
BMW4 Series Convertible (G23)430d4,000 rpm1,500-2,500 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Coupe (G22)430iBMW4 Series Convertible (G23)430d
Acceleration checkpoints
0-60 mph
0-97 km/h
5.5 s
5.5 s
0-100 km/h
0-62 mph
5.8 s
5.8 s
0-200 km/h
0-124 mph
20.1 s
21.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely 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
6.1 s
6.0 s
1/8 mile
201 m
9.1 s
9.1 s
1000 ft
305 m
11.7 s
11.7 s
1/4 mile
402 m
13.9 s
13.9 s
Trap speed
1/4 mile
402 m
169 km/h
105 mph
166 km/h
103 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (G22)430i
258 hp
192 kW
BMW4 Series Convertible (G23)430d
286 hp
213 kW

BMW 4 Series Convertible (G23) 430d has 28 hp more than BMW 4 Series Coupe (G22) 430i.

The biggest power difference is between BMW 4 Series Coupe (G22) 430i and BMW 4 Series Convertible (G23) 430d: 28 hp (21 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (G22)430i
400 Nm
295 lb-ft
BMW4 Series Convertible (G23)430d
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (G22)430i
1,545 kg
3,406 lb
BMW4 Series Convertible (G23)430d
1,880 kg
4,145 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 Coupe (G22)430i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (G23)430d
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 Coupe (G22)430i5.8 s
BMW4 Series Convertible (G23)430d5.8 s

Although BMW 4 Series Convertible (G23) 430d has more power, BMW 4 Series Coupe (G22) 430i 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
BMW4 Series Coupe (G22)430i
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
BMW4 Series Convertible (G23)430d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
BMW4 Series Coupe (G22)430i
167 hp/t
125 kW/t
6.0 kg/hp
BMW4 Series Convertible (G23)430d
152 hp/t
113 kW/t
6.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (G22)430i
967 km
601 mi
BMW4 Series Convertible (G23)430d
983 km
611 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Coupe (G22)430i
258 hp
192 kW
5.8 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BMW4 Series Convertible (G23)430d
286 hp
213 kW
5.8 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 Coupe (G22)430i
Power
258 hp
192 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
440 L
15.5 cu ft
Length
4,768 mm
187.7 in
Height
1,383 mm
54.4 in
BMW4 Series Convertible (G23)430d
Power
286 hp
213 kW
0-100 km/h5.8 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

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 Coupe (G22)430i
Power
258 hp
192 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
BMW4 Series Convertible (G23)430d
Power
286 hp
213 kW
0-100 km/h5.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.0 L/100 km
39.2 mpg US
47.1 mpg UK

BMW 4 Series Convertible (G23) 430d 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 Coupe (G22)430i
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
5.8 s
BMW4 Series Convertible (G23)430d
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
5.8 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 Coupe (G22)430i
167 hp/t
125 kW/t
6.0 kg/hp
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
BMW4 Series Convertible (G23)430d
152 hp/t
113 kW/t
6.6 kg/hp
6.0 L/100 km
39.2 mpg US
47.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Coupe (G22)430iBMW4 Series Convertible (G23)430d
Power
258 hp
192 kW
286 hp
213 kW
Torque
400 Nm
295 lb-ft
650 Nm
479 lb-ft
Acceleration
5.8 s
5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,545 kg
3,406 lb
1,880 kg
4,145 lb
Fuel consumption
6.1 L/100 km
38.6 mpg US
46.3 mpg UK
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
440 L
15.5 cu ft
Length
4,768 mm
187.7 in
Height
1,383 mm
54.4 in
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
Range score
967 km
601 mi
983 km
611 mi
Trunk score
440 L
15.5 cu ft
300 L
10.6 cu ft
Power-to-weight score
167 hp/t
125 kW/t
6.0 kg/hp
152 hp/t
113 kW/t
6.6 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 Coupe (G22) 430iBMW 4 Series Convertible (G23) 430d
Consumption6.1 L/100 km38.6 mpg US46.3 mpg UK6 L/100 km39.2 mpg US47.1 mpg UK
Cost / 100 km10.67 LC100 km10.50 LC100 km
Cost / 100 mi17.18 LC100 mi16.90 LC100 mi
Annual fuel used915 L242 US gal201 UK gal900 L238 US gal198 UK gal
Annual fuel cost1,601 LC/year1,575 LC/year

Head-to-head comparisons

BMW 4 Series Coupe (G22) 430i

  • Is 335 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 15 hp/t better power-to-weight
  • Has 140 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption

BMW 4 Series Convertible (G23) 430d

  • Has 28 hp more
  • Has 250 Nm more
  • Uses 0.1 L/100 km less fuel
  • Has 16 km (10 mi) more estimated range

Pros

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

Cons

  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Coupe (G22) 430i
BMW 4 Series Convertible (G23) 430d
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