Car comparison

BMW 4 Series Convertible (F33) · Facelift 2017 430ivsBMW X4 (G02) 30i

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

New comparison

BMW 4 Series Convertible (F33) · Facelift 2017

430i

252 hp1998 ccGasolineRWDManualTurbochargedCabriolet / convertible2017-2020

BMW X4 (G02)

30i

252 hp1998 ccGasolineAWDAutomaticTurbocharged2018-2021

Comparison overview

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

BMW 4 Series Convertible (F33) Facelift 2017 430i

Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
252 hp
188 kW
Highest torque
350 Nm
258 lb-ft
Lightest
1,710 kg
3,770 lb
Best power-to-weight
147 hp/t
110 kW/t
6.8 kg/hp
Lowest combined fuel consumption
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
Lowest highway consumption
5.8 L/100 km
40.6 mpg US
48.7 mpg UK
Lowest CO2 emissions
162 g/km
Best performance score
59/100
Best economy score
88/100

BMW X4 (G02) 30i

Quickest 0-100 km/h
6.3 s
Lowest city consumption
8.5 L/100 km
27.7 mpg US
33.2 mpg UK
Best estimated range
890 km
553 mi
Largest trunk
525 L
Best overall score
64/100
Best practicality score
76/100

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (F33)Facelift 2017430i	BMWX4 (G02)30i
Power	252hp188kW	252hp188kW
Torque	350Nm258lb-ft	350Nm258lb-ft
Curb weight	1,710kg3,770lb	1,720kg3,792lb
Gross weight	2,170kg4,784lb	2,400kg5,291lb
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	240 km/h 149 mph
To 99% top speed	93.9s99% target: 257 km/h / 160 mph Calculated	86.5s99% target: 238 km/h / 148 mph Calculated
0-100 km/h	6.4s	6.3s
0-200 km/h	24.0s Calculated	27.3s Calculated
0-60 mph	6.1s Calculated	6.0s Calculated
Fuel consumption	7L/100 km33.6mpg US40.4mpg UK	7.3L/100 km32.2mpg US38.7mpg UK
Fuel consumption city	9L/100 km26.1mpg US31.4mpg UK	8.5L/100 km27.7mpg US33.2mpg UK
Fuel consumption highway	5.8L/100 km40.6mpg US48.7mpg UK	6.7L/100 km35.1mpg US42.2mpg UK
Quarter mile	14.5s Calculated	14.4s Calculated
Power-to-weight	147hp/t110kW/t67hp/1000 lb Calculated	147hp/t109kW/t66hp/1000 lb Calculated
Torque-to-weight	205Nm/t137lb-ft/ton Calculated	203Nm/t136lb-ft/ton Calculated
Estimated range	857km533mi Calculated	890km553mi Calculated
Displacement	1,998cc122cu in	1,998cc122cu in
Length	4,640mm183in	4,752mm187in
Width	1,825mm72in	1,918mm76in
Height	1,384mm54in	1,621mm64in
Wheelbase	2,810mm111in	2,864mm113in
Front track	1,544mm61in	1,620mm64in
Rear track	1,593mm63in	1,666mm66in
Ground clearance	130mm5in	204mm8in
Trunk volume	370L	525L
Max trunk volume	-	1,430L
Doors	2	5
Seats	4	5
Fuel tank	60L	65L
CO2 emissions	162g/km	168g/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 (F33) Facelift 2017 430iBMW X4 (G02) 30iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW4 Series Convertible (F33)Facelift 2017430i	5,200 rpm	1,450-4,800 rpm	5,450 rpm
BMWX4 (G02)30i	5,200-6,500 rpm	1,450-4,800 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (F33)Facelift 2017430i	BMWX4 (G02)30i
	Acceleration checkpoints
0-60 mph 0-97 km/h	6.1 s	6.0 s
0-100 km/h 0-62 mph	6.4 s	6.3 s
0-200 km/h 0-124 mph	24.0 s	27.3 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited	240 km/h 149 mph
	Drag race simulation
60 ft 18 m	2.4 s	2.3 s
330 ft 101 m	6.3 s	6.2 s
1/8 mile 201 m	9.5 s	9.4 s
1000 ft 305 m	12.2 s	12.1 s
1/4 mile 402 m	14.5 s	14.4 s
Trap speed 1/4 mile 402 m	161 km/h 100 mph	157 km/h 98 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017430i	252 hp 188 kW
BMWX4 (G02)30i	252 hp 188 kW

Torque comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017430i	350 Nm 258 lb-ft
BMWX4 (G02)30i	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 (F33)Facelift 2017430i	1,710 kg 3,770 lb
BMWX4 (G02)30i	1,720 kg 3,792 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 (F33)Facelift 2017430i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMWX4 (G02)30i	240 km/h 149 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 (F33)Facelift 2017430i	6.4 s
BMWX4 (G02)30i	6.3 s

The biggest 0-100 km/h difference is between BMW X4 (G02) 30i and BMW 4 Series Convertible (F33) Facelift 2017 430i: 0.1 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 (F33)Facelift 2017430i	7.0 L/100 km 33.6 mpg US 40.4 mpg UK
BMWX4 (G02)30i	7.3 L/100 km 32.2 mpg US 38.7 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 (F33)Facelift 2017430i	147 hp/t 110 kW/t 6.8 kg/hp
BMWX4 (G02)30i	147 hp/t 109 kW/t 6.8 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017430i	857 km 533 mi
BMWX4 (G02)30i	890 km 553 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW4 Series Convertible (F33)Facelift 2017430i	252 hp 188 kW	6.4 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMWX4 (G02)30i	252 hp 188 kW	6.3 s	240 km/h 149 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 (F33)Facelift 2017430i

Power	252 hp 188 kW
0-100 km/h	6.4 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

BMWX4 (G02)30i

Power	252 hp 188 kW
0-100 km/h	6.3 s
Top speed 240 km/h 149 mph

Doors/seats	5 doors 5 seats
Trunk	525 L 18.5 cu ft
Length	4,752 mm 187.1 in
Height	1,621 mm 63.8 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 (F33)Facelift 2017430i

Power	252 hp 188 kW
0-100 km/h	6.4 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

7.0 L/100 km

33.6 mpg US

40.4 mpg UK

BMWX4 (G02)30i

Power	252 hp 188 kW
0-100 km/h	6.3 s
Top speed 240 km/h 149 mph

7.3 L/100 km

32.2 mpg US

38.7 mpg UK

BMW 4 Series Convertible (F33) Facelift 2017 430i 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 (F33)Facelift 2017430i	7.0 L/100 km 33.6 mpg US 40.4 mpg UK	6.4 s
BMWX4 (G02)30i	7.3 L/100 km 32.2 mpg US 38.7 mpg UK	6.3 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 (F33)Facelift 2017430i	147 hp/t 110 kW/t 6.8 kg/hp	7.0 L/100 km 33.6 mpg US 40.4 mpg UK
BMWX4 (G02)30i	147 hp/t 109 kW/t 6.8 kg/hp	7.3 L/100 km 32.2 mpg US 38.7 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (F33)Facelift 2017430i

BMWX4 (G02)30i

Power

252 hp

188 kW

252 hp

188 kW

Torque

350 Nm

258 lb-ft

350 Nm

258 lb-ft

Acceleration

6.4 s

6.3 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

240 km/h

149 mph

Lightness

1,710 kg

3,770 lb

1,720 kg

3,792 lb

Fuel consumption

7.0 L/100 km

33.6 mpg US

40.4 mpg UK

7.3 L/100 km

32.2 mpg US

38.7 mpg UK

Practicality

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

Doors/seats	5 doors 5 seats
Trunk	525 L 18.5 cu ft
Length	4,752 mm 187.1 in
Height	1,621 mm 63.8 in

Range score

857 km

533 mi

890 km

553 mi

CO2 score

162 g/km

168 g/km

Trunk score

370 L

13.1 cu ft

525 L

18.5 cu ft

Power-to-weight score

147 hp/t

110 kW/t

6.8 kg/hp

147 hp/t

109 kW/t

6.8 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 (F33) Facelift 2017 430i	BMW X4 (G02) 30i
Consumption	7 L/100 km33.6 mpg US40.4 mpg UK	7.3 L/100 km32.2 mpg US38.7 mpg UK
Cost / 100 km	12.25 LC100 km	12.78 LC100 km
Cost / 100 mi	19.71 LC100 mi	20.56 LC100 mi
Annual fuel used	1,050 L277 US gal231 UK gal	1,095 L289 US gal241 UK gal
Annual fuel cost	1,838 LC/year	1,916 LC/year