Car comparison

BMW 4 Series Convertible (G23) 430dvsBMW X6 (G06 LCI) · Facelift 2023 30d

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 X6 (G06 LCI) · Facelift 2023

30d

286 hp2993 ccDieselAWDAutomaticTurbocharged2023-present

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
Lightest
1,880 kg
4,145 lb
Best power-to-weight
152 hp/t
113 kW/t
6.6 kg/hp
Lowest combined fuel consumption
6.0 L/100 km
39.2 mpg US
47.1 mpg UK
Best performance score
68/100
Best economy score
91/100

BMW X6 (G06 LCI) Facelift 2023 30d

Best estimated range
1,013 km
629 mi
Largest trunk
580 L
Best overall score
68/100
Best practicality score
79/100

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (G23)430d	BMWX6 (G06 LCI)Facelift 202330d
Power	286hp213kW	286hp213kW
Torque	650Nm479lb-ft	650Nm479lb-ft
Curb weight	1,880kg4,145lb	2,220kg4,894lb
Gross weight	2,380kg5,247lb	2,950kg6,504lb
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	233 km/h 145 mph
To 99% top speed	83.5s99% target: 257 km/h / 160 mph Calculated	93.2s99% target: 231 km/h / 143 mph Calculated
0-100 km/h	5.8s	6.1s
0-200 km/h	21.5s Calculated	30.7s Calculated
0-60 mph	5.5s Calculated	5.7s Calculated
Fuel consumption	6L/100 km39.2mpg US47.1mpg UK	7.9L/100 km29.8mpg US35.8mpg UK
Quarter mile	13.9s Calculated	14.3s Calculated
Power-to-weight	152hp/t113kW/t69hp/1000 lb Calculated	129hp/t96kW/t58hp/1000 lb Calculated
Torque-to-weight	346Nm/t231lb-ft/ton Calculated	293Nm/t196lb-ft/ton Calculated
Estimated range	983km611mi Calculated	1,013km629mi Calculated
Displacement	2,993cc183cu in	2,993cc183cu in
Length	4,768mm188in	4,960mm195in
Width	1,852mm73in	2,004mm79in
Height	1,384mm54in	1,700mm67in
Wheelbase	2,851mm112in	2,975mm117in
Front track	1,573mm62in	1,683mm66in
Rear track	1,612mm63in	1,694mm67in
Ground clearance	124mm5in	216mm9in
Trunk volume	300L	580L
Max trunk volume	385L	1,530L
Doors	2	5
Seats	4	5
Fuel tank	59L	80L

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 X6 (G06 LCI) Facelift 2023 30dPowerTorque

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
BMWX6 (G06 LCI)Facelift 202330d	4,000 rpm	1,500-2,500 rpm	4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (G23)430d	BMWX6 (G06 LCI)Facelift 202330d
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.5 s	5.7 s
0-100 km/h 0-62 mph	5.8 s	6.1 s
0-200 km/h 0-124 mph	21.5 s	30.7 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Limited	233 km/h 145 mph
	Drag race simulation
60 ft 18 m	2.3 s	2.2 s
330 ft 101 m	6.0 s	6.0 s
1/8 mile 201 m	9.1 s	9.2 s
1000 ft 305 m	11.7 s	12.0 s
1/4 mile 402 m	13.9 s	14.3 s
Trap speed 1/4 mile 402 m	166 km/h 103 mph	154 km/h 96 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
BMWX6 (G06 LCI)Facelift 202330d	286 hp 213 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
BMWX6 (G06 LCI)Facelift 202330d	650 Nm 479 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
BMWX6 (G06 LCI)Facelift 202330d	2,220 kg 4,894 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
BMWX6 (G06 LCI)Facelift 202330d	233 km/h 145 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
BMWX6 (G06 LCI)Facelift 202330d	6.1 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (G23) 430d and BMW X6 (G06 LCI) Facelift 2023 30d: 0.3 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
BMWX6 (G06 LCI)Facelift 202330d	7.9 L/100 km 29.8 mpg US 35.8 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (G23) 430d and BMW X6 (G06 LCI) Facelift 2023 30d: 1.9 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 (G23)430d	152 hp/t 113 kW/t 6.6 kg/hp
BMWX6 (G06 LCI)Facelift 202330d	129 hp/t 96 kW/t 7.8 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (G23)430d	983 km 611 mi
BMWX6 (G06 LCI)Facelift 202330d	1,013 km 629 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
BMWX6 (G06 LCI)Facelift 202330d	286 hp 213 kW	6.1 s	233 km/h 145 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

BMWX6 (G06 LCI)Facelift 202330d

Power	286 hp 213 kW
0-100 km/h	6.1 s
Top speed 233 km/h 145 mph

Doors/seats	5 doors 5 seats
Trunk	580 L 20.5 cu ft
Length	4,960 mm 195.3 in
Height	1,700 mm 66.9 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

BMWX6 (G06 LCI)Facelift 202330d

Power	286 hp 213 kW
0-100 km/h	6.1 s
Top speed 233 km/h 145 mph

7.9 L/100 km

29.8 mpg US

35.8 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
BMWX6 (G06 LCI)Facelift 202330d	7.9 L/100 km 29.8 mpg US 35.8 mpg UK	6.1 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
BMWX6 (G06 LCI)Facelift 202330d	129 hp/t 96 kW/t 7.8 kg/hp	7.9 L/100 km 29.8 mpg US 35.8 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (G23)430d

BMWX6 (G06 LCI)Facelift 202330d

Power

286 hp

213 kW

286 hp

213 kW

Torque

650 Nm

479 lb-ft

650 Nm

479 lb-ft

Acceleration

5.8 s

6.1 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

233 km/h

145 mph

Lightness

1,880 kg

4,145 lb

2,220 kg

4,894 lb

Fuel consumption

6.0 L/100 km

39.2 mpg US

47.1 mpg UK

7.9 L/100 km

29.8 mpg US

35.8 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	5 doors 5 seats
Trunk	580 L 20.5 cu ft
Length	4,960 mm 195.3 in
Height	1,700 mm 66.9 in

Range score

983 km

611 mi

1,013 km

629 mi

Trunk score

300 L

10.6 cu ft

580 L

20.5 cu ft

Power-to-weight score

152 hp/t

113 kW/t

6.6 kg/hp

129 hp/t

96 kW/t

7.8 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 (G23) 430d	BMW X6 (G06 LCI) Facelift 2023 30d
Consumption	6 L/100 km39.2 mpg US47.1 mpg UK	7.9 L/100 km29.8 mpg US35.8 mpg UK
Cost / 100 km	10.50 LC100 km	13.83 LC100 km
Cost / 100 mi	16.90 LC100 mi	22.25 LC100 mi
Annual fuel used	900 L238 US gal198 UK gal	1,185 L313 US gal261 UK gal
Annual fuel cost	1,575 LC/year	2,074 LC/year