Car comparison

BMW 4 Series Convertible (G23) 430dvsBMW 4 Series Coupe (F32) 430i

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

New comparison

BMW 4 Series Convertible (G23)

430d

286 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2021-2024

BMW 4 Series Coupe (F32)

430i

252 hp1998 ccGasolineRWDAutomaticTurbochargedCoupe2016-2016

Comparison overview

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

BMW 4 Series Convertible (G23) 430d

Quickest 0-100 km/h
5.8 s
Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
286 hp
213 kW
Highest torque
650 Nm
479 lb-ft
Best overall score
61/100
Best performance score
68/100
Best economy score
91/100

BMW 4 Series Coupe (F32) 430i

Lightest
1,510 kg
3,329 lb
Best power-to-weight
167 hp/t
124 kW/t
6.0 kg/hp
Lowest combined fuel consumption
5.8 L/100 km
40.6 mpg US
48.7 mpg UK
Best estimated range
1,034 km
643 mi
Largest trunk
445 L
Best practicality score
53/100

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (G23)430d	BMW4 Series Coupe (F32)430i
Power	286hp213kW	252hp188kW
Torque	650Nm479lb-ft	350Nm258lb-ft
Curb weight	1,880kg4,145lb	1,510kg3,329lb
Gross weight	2,380kg5,247lb	2,030kg4,475lb
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	83.8s99% target: 257 km/h / 160 mph Calculated	79.5s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.8s	5.8s
0-200 km/h	21.5s Calculated	21.0s Calculated
0-60 mph	5.5s Calculated	5.5s Calculated
Fuel consumption	6L/100 km39.2mpg US47.1mpg UK	5.8L/100 km40.6mpg US48.7mpg UK
Fuel consumption city	-	7.4L/100 km31.8mpg US38.2mpg UK
Fuel consumption highway	-	4.9L/100 km48mpg US57.6mpg UK
Quarter mile	13.9s Calculated	13.9s Calculated
Power-to-weight	152hp/t113kW/t69hp/1000 lb Calculated	167hp/t124kW/t76hp/1000 lb Calculated
Torque-to-weight	346Nm/t231lb-ft/ton Calculated	232Nm/t155lb-ft/ton Calculated
Estimated range	983km611mi Calculated	1,034km643mi Calculated
Displacement	2,993cc183cu in	1,998cc122cu in
Length	4,768mm188in	4,638mm183in
Width	1,852mm73in	1,825mm72in
Height	1,384mm54in	1,377mm54in
Wheelbase	2,851mm112in	2,810mm111in
Front track	1,573mm62in	1,545mm61in
Rear track	1,612mm63in	1,594mm63in
Ground clearance	124mm5in	130mm5in
Trunk volume	300L	445L
Max trunk volume	385L	-
Doors	2	2
Seats	4	4
Fuel tank	59L	60L
CO2 emissions	-	136g/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) 430dBMW 4 Series Coupe (F32) 430iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW4 Series Convertible (G23)430d	4,000 rpm	1,500-2,500 rpm	4,250 rpm
BMW4 Series Coupe (F32)430i	5,200 rpm	1,450-4,800 rpm	5,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (G23)430d	BMW4 Series Coupe (F32)430i
	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	21.5 s	21.0 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	2.3 s	2.3 s
330 ft 101 m	6.0 s	6.1 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	166 km/h 103 mph	167 km/h 104 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	286 hp 213 kW
BMW4 Series Coupe (F32)430i	252 hp 188 kW

BMW 4 Series Convertible (G23) 430d has 34 hp more than BMW 4 Series Coupe (F32) 430i.

The biggest power difference is between BMW 4 Series Coupe (F32) 430i and BMW 4 Series Convertible (G23) 430d: 34 hp (25 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	650 Nm 479 lb-ft
BMW4 Series Coupe (F32)430i	350 Nm 258 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	1,880 kg 4,145 lb
BMW4 Series Coupe (F32)430i	1,510 kg 3,329 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMW4 Series Coupe (F32)430i	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
Vehicle	Value
BMW4 Series Convertible (G23)430d	5.8 s
BMW4 Series Coupe (F32)430i	5.8 s

Fuel consumption comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	6.0 L/100 km 39.2 mpg US 47.1 mpg UK
BMW4 Series Coupe (F32)430i	5.8 L/100 km 40.6 mpg US 48.7 mpg UK

Power-to-weight comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	152 hp/t 113 kW/t 6.6 kg/hp
BMW4 Series Coupe (F32)430i	167 hp/t 124 kW/t 6.0 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	983 km 611 mi
BMW4 Series Coupe (F32)430i	1,034 km 643 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW4 Series Convertible (G23)430d	286 hp 213 kW	5.8 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMW4 Series Coupe (F32)430i	252 hp 188 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.

Vehicle

Performance score

Practicality score

BMW4 Series Convertible (G23)430d

Power	286 hp 213 kW
0-100 km/h	5.8 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

BMW4 Series Coupe (F32)430i

Power	252 hp 188 kW
0-100 km/h	5.8 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	445 L 15.7 cu ft
Length	4,638 mm 182.6 in
Height	1,377 mm 54.2 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

BMW4 Series Convertible (G23)430d

Power	286 hp 213 kW
0-100 km/h	5.8 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

BMW4 Series Coupe (F32)430i

Power	252 hp 188 kW
0-100 km/h	5.8 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

5.8 L/100 km

40.6 mpg US

48.7 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
BMW4 Series Convertible (G23)430d	6.0 L/100 km 39.2 mpg US 47.1 mpg UK	5.8 s
BMW4 Series Coupe (F32)430i	5.8 L/100 km 40.6 mpg US 48.7 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
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
BMW4 Series Coupe (F32)430i	167 hp/t 124 kW/t 6.0 kg/hp	5.8 L/100 km 40.6 mpg US 48.7 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (G23)430d

BMW4 Series Coupe (F32)430i

Power

286 hp

213 kW

252 hp

188 kW

Torque

650 Nm

479 lb-ft

350 Nm

258 lb-ft

Acceleration

5.8 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,880 kg

4,145 lb

1,510 kg

3,329 lb

Fuel consumption

6.0 L/100 km

39.2 mpg US

47.1 mpg UK

5.8 L/100 km

40.6 mpg US

48.7 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	445 L 15.7 cu ft
Length	4,638 mm 182.6 in
Height	1,377 mm 54.2 in

Range score

983 km

611 mi

1,034 km

643 mi

CO2 score

136 g/km

Trunk score

300 L

10.6 cu ft

445 L

15.7 cu ft

Power-to-weight score

152 hp/t

113 kW/t

6.6 kg/hp

167 hp/t

124 kW/t

6.0 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	BMW 4 Series Convertible (G23) 430d	BMW 4 Series Coupe (F32) 430i
Consumption	6 L/100 km39.2 mpg US47.1 mpg UK	5.8 L/100 km40.6 mpg US48.7 mpg UK
Cost / 100 km	10.50 LC100 km	10.15 LC100 km
Cost / 100 mi	16.90 LC100 mi	16.33 LC100 mi
Annual fuel used	900 L238 US gal198 UK gal	870 L230 US gal191 UK gal
Annual fuel cost	1,575 LC/year	1,523 LC/year