Car comparison

BMW 4 Series Convertible (F33) · Facelift 2017 430dvsBMW 6 Series Gran Turismo (G32) 630i

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

New comparison

BMW 4 Series Convertible (F33) · Facelift 2017

430d

258 hp2993 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2017-2020

BMW 6 Series Gran Turismo (G32)

630i

258 hp1998 ccGasolineRWDAutomaticTurbocharged2017-2020

Comparison overview

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

BMW 4 Series Convertible (F33) Facelift 2017 430d

Quickest 0-100 km/h
5.9 s
Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
258 hp
192 kW
Highest torque
560 Nm
413 lb-ft
Lowest combined fuel consumption
5.5 L/100 km
42.8 mpg US
51.4 mpg UK
Lowest city consumption
6.3 L/100 km
37.3 mpg US
44.8 mpg UK
Lowest highway consumption
5.0 L/100 km
47.0 mpg US
56.5 mpg UK
Lowest CO2 emissions
144 g/km
Best estimated range
1,036 km
644 mi
Best performance score
65/100
Best economy score
92/100

BMW 6 Series Gran Turismo (G32) 630i

Lightest
1,720 kg
3,792 lb
Best power-to-weight
150 hp/t
112 kW/t
6.7 kg/hp
Largest trunk
610 L
Best overall score
67/100
Best practicality score
79/100

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (F33)Facelift 2017430d	BMW6 Series Gran Turismo (G32)630i
Power	258hp192kW	258hp192kW
Torque	560Nm413lb-ft	400Nm295lb-ft
Curb weight	1,770kg3,902lb	1,720kg3,792lb
Gross weight	2,220kg4,894lb	2,380kg5,247lb
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	86.0s99% target: 257 km/h / 160 mph Calculated	88.1s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.9s	6.3s
0-200 km/h	22.0s Calculated	23.0s Calculated
0-60 mph	5.6s Calculated	6.0s Calculated
Fuel consumption	5.5L/100 km42.8mpg US51.4mpg UK	6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city	6.3L/100 km37.3mpg US44.8mpg UK	8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption highway	5L/100 km47mpg US56.5mpg UK	5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile	14.0s Calculated	14.4s Calculated
Power-to-weight	146hp/t109kW/t66hp/1000 lb Calculated	150hp/t112kW/t68hp/1000 lb Calculated
Torque-to-weight	316Nm/t212lb-ft/ton Calculated	233Nm/t156lb-ft/ton Calculated
Estimated range	1,036km644mi Calculated	1,030km640mi Calculated
Displacement	2,993cc183cu in	1,998cc122cu in
Length	4,640mm183in	5,091mm200in
Width	1,825mm72in	1,902mm75in
Height	1,384mm54in	1,538mm61in
Wheelbase	2,810mm111in	3,070mm121in
Front track	1,544mm61in	1,615mm64in
Rear track	1,593mm63in	1,649mm65in
Ground clearance	130mm5in	138mm5in
Trunk volume	370L	610L
Max trunk volume	-	1,800L
Doors	2	5
Seats	4	5
Fuel tank	57L	68L
CO2 emissions	144g/km	152g/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 430dBMW 6 Series Gran Turismo (G32) 630iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW4 Series Convertible (F33)Facelift 2017430d	4,000 rpm	1,500-3,000 rpm	4,250 rpm
BMW6 Series Gran Turismo (G32)630i	5,000-6,500 rpm	1,550-4,400 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (F33)Facelift 2017430d	BMW6 Series Gran Turismo (G32)630i
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.6 s	6.0 s
0-100 km/h 0-62 mph	5.9 s	6.3 s
0-200 km/h 0-124 mph	22.0 s	23.0 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.4 s
330 ft 101 m	6.1 s	6.3 s
1/8 mile 201 m	9.2 s	9.4 s
1000 ft 305 m	11.8 s	12.1 s
1/4 mile 402 m	14.0 s	14.4 s
Trap speed 1/4 mile 402 m	165 km/h 102 mph	162 km/h 101 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017430d	258 hp 192 kW
BMW6 Series Gran Turismo (G32)630i	258 hp 192 kW

Torque comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017430d	560 Nm 413 lb-ft
BMW6 Series Gran Turismo (G32)630i	400 Nm 295 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 2017430d	1,770 kg 3,902 lb
BMW6 Series Gran Turismo (G32)630i	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 2017430d	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMW6 Series Gran Turismo (G32)630i	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 (F33)Facelift 2017430d	5.9 s
BMW6 Series Gran Turismo (G32)630i	6.3 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (F33) Facelift 2017 430d and BMW 6 Series Gran Turismo (G32) 630i: 0.4 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 2017430d	5.5 L/100 km 42.8 mpg US 51.4 mpg UK
BMW6 Series Gran Turismo (G32)630i	6.6 L/100 km 35.6 mpg US 42.8 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (F33) Facelift 2017 430d and BMW 6 Series Gran Turismo (G32) 630i: 1.1 L/100 km.

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 2017430d	146 hp/t 109 kW/t 6.9 kg/hp
BMW6 Series Gran Turismo (G32)630i	150 hp/t 112 kW/t 6.7 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 2017430d	1,036 km 644 mi
BMW6 Series Gran Turismo (G32)630i	1,030 km 640 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 2017430d	258 hp 192 kW	5.9 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
BMW6 Series Gran Turismo (G32)630i	258 hp 192 kW	6.3 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 (F33)Facelift 2017430d

Power	258 hp 192 kW
0-100 km/h	5.9 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

BMW6 Series Gran Turismo (G32)630i

Power	258 hp 192 kW
0-100 km/h	6.3 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	5 doors 5 seats
Trunk	610 L 21.5 cu ft
Length	5,091 mm 200.4 in
Height	1,538 mm 60.6 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 2017430d

Power	258 hp 192 kW
0-100 km/h	5.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

5.5 L/100 km

42.8 mpg US

51.4 mpg UK

BMW6 Series Gran Turismo (G32)630i

Power	258 hp 192 kW
0-100 km/h	6.3 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

BMW 4 Series Convertible (F33) Facelift 2017 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 (F33)Facelift 2017430d	5.5 L/100 km 42.8 mpg US 51.4 mpg UK	5.9 s
BMW6 Series Gran Turismo (G32)630i	6.6 L/100 km 35.6 mpg US 42.8 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 2017430d	146 hp/t 109 kW/t 6.9 kg/hp	5.5 L/100 km 42.8 mpg US 51.4 mpg UK
BMW6 Series Gran Turismo (G32)630i	150 hp/t 112 kW/t 6.7 kg/hp	6.6 L/100 km 35.6 mpg US 42.8 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (F33)Facelift 2017430d

BMW6 Series Gran Turismo (G32)630i

Power

258 hp

192 kW

258 hp

192 kW

Torque

560 Nm

413 lb-ft

400 Nm

295 lb-ft

Acceleration

5.9 s

6.3 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,770 kg

3,902 lb

1,720 kg

3,792 lb

Fuel consumption

5.5 L/100 km

42.8 mpg US

51.4 mpg UK

6.6 L/100 km

35.6 mpg US

42.8 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	610 L 21.5 cu ft
Length	5,091 mm 200.4 in
Height	1,538 mm 60.6 in

Range score

1,036 km

644 mi

1,030 km

640 mi

CO2 score

144 g/km

152 g/km

Trunk score

370 L

13.1 cu ft

610 L

21.5 cu ft

Power-to-weight score

146 hp/t

109 kW/t

6.9 kg/hp

150 hp/t

112 kW/t

6.7 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 430d	BMW 6 Series Gran Turismo (G32) 630i
Consumption	5.5 L/100 km42.8 mpg US51.4 mpg UK	6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km	9.63 LC100 km	11.55 LC100 km
Cost / 100 mi	15.49 LC100 mi	18.59 LC100 mi
Annual fuel used	825 L218 US gal181 UK gal	990 L262 US gal218 UK gal
Annual fuel cost	1,444 LC/year	1,733 LC/year