Car comparison

Maserati GranCabrio I 4.7 V8vsBMW 6 Series Convertible (F12) 650i

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

New comparison

Maserati GranCabrio I

4.7 V8

450 hp4691 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2011-2012

BMW 6 Series Convertible (F12)

650i

450 hp4395 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2012-2015

Comparison overview

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

BMW 6 Series Convertible (F12) 650i

Quickest 0-100 km/h
4.5 s
Highest torque
650 Nm
479 lb-ft
Lowest combined fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Lowest city consumption
13.3 L/100 km
17.7 mpg US
21.2 mpg UK
Lowest highway consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Lowest CO2 emissions
221 g/km
Best estimated range
737 km
458 mi
Largest trunk
300 L
Best overall score
68/100
Best performance score
79/100
Best economy score
81/100
Best practicality score
45/100

Maserati GranCabrio I 4.7 V8

Fastest top speed
285 km/h
177 mph
Most powerful
450 hp
336 kW
Lightest
1,980 kg
4,365 lb
Best power-to-weight
227 hp/t
169 kW/t
4.4 kg/hp

Specification comparison

Specification comparison
Model	MaseratiGranCabrio I4.7 V8	BMW6 Series Convertible (F12)650i
Power	450hp336kW	450hp336kW
Torque	510Nm376lb-ft	650Nm479lb-ft
Curb weight	1,980kg4,365lb	1,980kg4,365lb
Gross weight	2,350kg5,181lb	2,480kg5,467lb
Top speed	285 km/h 177 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	81.2s99% target: 282 km/h / 175 mph Calculated	61.6s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.2s	4.5s
0-200 km/h	17.2s Calculated	16.3s Calculated
0-60 mph	4.9s Calculated	4.3s Calculated
Fuel consumption	14.5L/100 km16.2mpg US19.5mpg UK	9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city	22.5L/100 km10.5mpg US12.6mpg UK	13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption highway	9.8L/100 km24mpg US28.8mpg UK	7.3L/100 km32.2mpg US38.7mpg UK
Quarter mile	13.3s Calculated	12.7s Calculated
Power-to-weight	227hp/t169kW/t103hp/1000 lb Calculated	227hp/t169kW/t103hp/1000 lb Calculated
Torque-to-weight	258Nm/t172lb-ft/ton Calculated	328Nm/t220lb-ft/ton Calculated
Estimated range	517km321mi Calculated	737km458mi Calculated
Displacement	4,691cc286cu in	4,395cc268cu in
Length	4,881mm192in	4,894mm193in
Width	1,915mm75in	1,894mm75in
Height	1,353mm53in	1,365mm54in
Wheelbase	2,942mm116in	2,855mm112in
Front track	1,586mm62in	1,600mm63in
Rear track	1,590mm63in	1,665mm66in
Ground clearance	-	123mm5in
Trunk volume	173L	300L
Max trunk volume	-	350L
Doors	2	2
Seats	4	4
Fuel tank	75L	70L
CO2 emissions	337g/km	221g/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.

Maserati GranCabrio I 4.7 V8BMW 6 Series Convertible (F12) 650iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
MaseratiGranCabrio I4.7 V8	7,000 rpm	4,750 rpm	7,250 rpm
BMW6 Series Convertible (F12)650i	5,500 rpm	2,000-4,500 rpm	5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	MaseratiGranCabrio I4.7 V8	BMW6 Series Convertible (F12)650i
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.9 s	4.3 s
0-100 km/h 0-62 mph	5.2 s	4.5 s
0-200 km/h 0-124 mph	17.2 s	16.3 s
Top speed	285 km/h 177 mph	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.2 s	2.1 s
330 ft 101 m	5.8 s	5.5 s
1/8 mile 201 m	8.7 s	8.2 s
1000 ft 305 m	11.2 s	10.6 s
1/4 mile 402 m	13.3 s	12.7 s
Trap speed 1/4 mile 402 m	177 km/h 110 mph	180 km/h 112 mph

Power comparison

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

Chart data table
Vehicle	Value
MaseratiGranCabrio I4.7 V8	450 hp 336 kW
BMW6 Series Convertible (F12)650i	450 hp 336 kW

Torque comparison

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

Chart data table
Vehicle	Value
MaseratiGranCabrio I4.7 V8	510 Nm 376 lb-ft
BMW6 Series Convertible (F12)650i	650 Nm 479 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
MaseratiGranCabrio I4.7 V8	1,980 kg 4,365 lb
BMW6 Series Convertible (F12)650i	1,980 kg 4,365 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
MaseratiGranCabrio I4.7 V8	285 km/h 177 mph
BMW6 Series Convertible (F12)650i	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
MaseratiGranCabrio I4.7 V8	5.2 s
BMW6 Series Convertible (F12)650i	4.5 s

The biggest 0-100 km/h difference is between BMW 6 Series Convertible (F12) 650i and Maserati GranCabrio I 4.7 V8: 0.7 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
MaseratiGranCabrio I4.7 V8	14.5 L/100 km 16.2 mpg US 19.5 mpg UK
BMW6 Series Convertible (F12)650i	9.5 L/100 km 24.8 mpg US 29.7 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (F12) 650i and Maserati GranCabrio I 4.7 V8: 5.0 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
MaseratiGranCabrio I4.7 V8	227 hp/t 169 kW/t 4.4 kg/hp
BMW6 Series Convertible (F12)650i	227 hp/t 169 kW/t 4.4 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
MaseratiGranCabrio I4.7 V8	517 km 321 mi
BMW6 Series Convertible (F12)650i	737 km 458 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
MaseratiGranCabrio I4.7 V8	450 hp 336 kW	5.2 s	285 km/h 177 mph
BMW6 Series Convertible (F12)650i	450 hp 336 kW	4.5 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

MaseratiGranCabrio I4.7 V8

Power	450 hp 336 kW
0-100 km/h	5.2 s
Top speed 285 km/h 177 mph

Doors/seats	2 doors 4 seats
Trunk	173 L 6.1 cu ft
Length	4,881 mm 192.2 in
Height	1,353 mm 53.3 in

BMW6 Series Convertible (F12)650i

Power	450 hp 336 kW
0-100 km/h	4.5 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	4,894 mm 192.7 in
Height	1,365 mm 53.7 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

MaseratiGranCabrio I4.7 V8

Power	450 hp 336 kW
0-100 km/h	5.2 s
Top speed 285 km/h 177 mph

14.5 L/100 km

16.2 mpg US

19.5 mpg UK

BMW6 Series Convertible (F12)650i

Power	450 hp 336 kW
0-100 km/h	4.5 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

BMW 6 Series Convertible (F12) 650i 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
MaseratiGranCabrio I4.7 V8	14.5 L/100 km 16.2 mpg US 19.5 mpg UK	5.2 s
BMW6 Series Convertible (F12)650i	9.5 L/100 km 24.8 mpg US 29.7 mpg UK	4.5 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
MaseratiGranCabrio I4.7 V8	227 hp/t 169 kW/t 4.4 kg/hp	14.5 L/100 km 16.2 mpg US 19.5 mpg UK
BMW6 Series Convertible (F12)650i	227 hp/t 169 kW/t 4.4 kg/hp	9.5 L/100 km 24.8 mpg US 29.7 mpg UK

Detailed score breakdown

Vehicle

MaseratiGranCabrio I4.7 V8

BMW6 Series Convertible (F12)650i

Power

450 hp

336 kW

450 hp

336 kW

Torque

510 Nm

376 lb-ft

650 Nm

479 lb-ft

Acceleration

5.2 s

4.5 s

Top speed

285 km/h

177 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,980 kg

4,365 lb

1,980 kg

4,365 lb

Fuel consumption

14.5 L/100 km

16.2 mpg US

19.5 mpg UK

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	173 L 6.1 cu ft
Length	4,881 mm 192.2 in
Height	1,353 mm 53.3 in

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,894 mm 192.7 in
Height	1,365 mm 53.7 in

Range score

517 km

321 mi

737 km

458 mi

CO2 score

337 g/km

221 g/km

Trunk score

173 L

6.1 cu ft

300 L

10.6 cu ft

Power-to-weight score

227 hp/t

169 kW/t

4.4 kg/hp

227 hp/t

169 kW/t

4.4 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	Maserati GranCabrio I 4.7 V8	BMW 6 Series Convertible (F12) 650i
Consumption	14.5 L/100 km16.2 mpg US19.5 mpg UK	9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km	25.38 LC100 km	16.63 LC100 km
Cost / 100 mi	40.84 LC100 mi	26.76 LC100 mi
Annual fuel used	2,175 L575 US gal478 UK gal	1,425 L376 US gal313 UK gal
Annual fuel cost	3,806 LC/year	2,494 LC/year