Car comparison

Maserati GranCabrio I Sport 4.7 V8vsRolls-Royce Phantom Drophead Coupe · Facelift 2012 6.7 V12

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

New comparison

Maserati GranCabrio I

Sport 4.7 V8

460 hp4691 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2012-2017
VS

Rolls-Royce Phantom Drophead Coupe · Facelift 2012

6.7 V12

460 hp6749 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2012-2016

Comparison overview

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

Best choices

Maserati GranCabrio I Sport 4.7 V8

  • Quickest 0-100 km/h
    5.0 s
  • Fastest top speed
    285 km/h
    177 mph
  • Most powerful
    460 hp
    343 kW
  • Lightest
    1,980 kg
    4,365 lb
  • Best power-to-weight
    232 hp/t
    173 kW/t
    4.3 kg/hp
  • Lowest combined fuel consumption
    14.5 L/100 km
    16.2 mpg US
    19.5 mpg UK
  • Lowest city consumption
    22.5 L/100 km
    10.5 mpg US
    12.6 mpg UK
  • Lowest highway consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Lowest CO2 emissions
    337 g/km
  • Best performance score
    77/100
  • Best economy score
    68/100

Specification comparison

Specification comparison
ModelMaseratiGranCabrio ISport 4.7 V8Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Power
460hp343kW
460hp343kW
Torque
520Nm384lb-ft
720Nm531lb-ft
Curb weight
1,980kg4,365lb
2,630kg5,798lb
Gross weight
2,350kg5,181lb
3,050kg6,724lb
Top speed
285 km/h
177 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Calculated
To 99% top speed
77.2s99% target: 282 km/h / 175 mph
Calculated
95.9s99% target: 248 km/h / 154 mph
Calculated
0-100 km/h
5.0s
5.8s
0-200 km/h
16.5s
Calculated
25.1s
Calculated
0-60 mph
4.8s
Calculated
5.5s
Calculated
Fuel consumption
14.5L/100 km16.2mpg US19.5mpg UK
14.8L/100 km15.9mpg US19.1mpg UK
Fuel consumption city
22.5L/100 km10.5mpg US12.6mpg UK
22.8L/100 km10.3mpg US12.4mpg UK
Fuel consumption highway
9.8L/100 km24mpg US28.8mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile
13.1s
Calculated
14.0s
Calculated
Power-to-weight
232hp/t173kW/t105hp/1000 lb
Calculated
175hp/t130kW/t79hp/1000 lb
Calculated
Torque-to-weight
263Nm/t176lb-ft/ton
Calculated
274Nm/t183lb-ft/ton
Calculated
Estimated range
517km321mi
Calculated
541km336mi
Calculated
Displacement
4,691cc286cu in
6,749cc412cu in
Length
4,881mm192in
5,612mm221in
Width
1,915mm75in
1,987mm78in
Height
1,353mm53in
1,566mm62in
Wheelbase
2,942mm116in
3,320mm131in
Front track
1,586mm62in
1,686mm66in
Rear track
1,590mm63in
1,676mm66in
Trunk volume
173L
395L
Doors
2
2
Seats
4
4
Fuel tank
75L
80L
CO2 emissions
337g/km
347g/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 Sport 4.7 V8Rolls-Royce Phantom Drophead Coupe Facelift 2012 6.7 V12PowerTorque
  • Maserati GranCabrio I Sport 4.7 V8: Power / Torque
  • Rolls-Royce Phantom Drophead Coupe Facelift 2012 6.7 V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
MaseratiGranCabrio ISport 4.7 V87,000 rpm4,750 rpm7,250 rpm
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V125,350 rpm3,500 rpm5,600 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMaseratiGranCabrio ISport 4.7 V8Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
5.5 s
0-100 km/h
0-62 mph
5.0 s
5.8 s
0-200 km/h
0-124 mph
16.5 s
25.1 s
Top speed
285 km/h
177 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.7 s
5.9 s
1/8 mile
201 m
8.6 s
9.0 s
1000 ft
305 m
11.0 s
11.8 s
1/4 mile
402 m
13.1 s
14.0 s
Trap speed
1/4 mile
402 m
179 km/h
111 mph
160 km/h
99 mph

Power comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
460 hp
343 kW
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
460 hp
343 kW

Torque comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
520 Nm
384 lb-ft
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
720 Nm
531 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
1,980 kg
4,365 lb
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
2,630 kg
5,798 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
285 km/h
177 mph
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V85.0 s
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V125.8 s

The biggest 0-100 km/h difference is between Maserati GranCabrio I Sport 4.7 V8 and Rolls-Royce Phantom Drophead Coupe Facelift 2012 6.7 V12: 0.8 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
14.8 L/100 km
15.9 mpg US
19.1 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
232 hp/t
173 kW/t
4.3 kg/hp
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
175 hp/t
130 kW/t
5.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio ISport 4.7 V8
517 km
321 mi
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
541 km
336 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
MaseratiGranCabrio ISport 4.7 V8
460 hp
343 kW
5.0 s
285 km/h
177 mph
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
460 hp
343 kW
5.8 s
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
MaseratiGranCabrio ISport 4.7 V8
Power
460 hp
343 kW
0-100 km/h5.0 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
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Power
460 hp
343 kW
0-100 km/h5.8 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Doors/seats
2 doors
4 seats
Trunk
395 L
13.9 cu ft
Length
5,612 mm
220.9 in
Height
1,566 mm
61.7 in

Performance vs fuel economy

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

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
MaseratiGranCabrio ISport 4.7 V8
Power
460 hp
343 kW
0-100 km/h5.0 s
Top speed
285 km/h
177 mph
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Power
460 hp
343 kW
0-100 km/h5.8 s
Top speed
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
14.8 L/100 km
15.9 mpg US
19.1 mpg UK

Maserati GranCabrio I Sport 4.7 V8 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
VehicleFuel consumption, L/100 km0-100 km/h, s
MaseratiGranCabrio ISport 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
5.0 s
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
14.8 L/100 km
15.9 mpg US
19.1 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
MaseratiGranCabrio ISport 4.7 V8
232 hp/t
173 kW/t
4.3 kg/hp
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
175 hp/t
130 kW/t
5.7 kg/hp
14.8 L/100 km
15.9 mpg US
19.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMaseratiGranCabrio ISport 4.7 V8Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12
Power
460 hp
343 kW
460 hp
343 kW
Torque
520 Nm
384 lb-ft
720 Nm
531 lb-ft
Acceleration
5.0 s
5.8 s
Top speed
285 km/h
177 mph
Unrestricted
250 km/h155 mph
Restricted
240 km/h149 mph
Lightness
1,980 kg
4,365 lb
2,630 kg
5,798 lb
Fuel consumption
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
14.8 L/100 km
15.9 mpg US
19.1 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
395 L
13.9 cu ft
Length
5,612 mm
220.9 in
Height
1,566 mm
61.7 in
Range score
517 km
321 mi
541 km
336 mi
CO2 score
337 g/km
347 g/km
Trunk score
173 L
6.1 cu ft
395 L
13.9 cu ft
Power-to-weight score
232 hp/t
173 kW/t
4.3 kg/hp
175 hp/t
130 kW/t
5.7 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

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

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
VehicleMaserati GranCabrio I Sport 4.7 V8Rolls-Royce Phantom Drophead Coupe Facelift 2012 6.7 V12
Consumption14.5 L/100 km16.2 mpg US19.5 mpg UK14.8 L/100 km15.9 mpg US19.1 mpg UK
Cost / 100 km25.38 LC100 km25.90 LC100 km
Cost / 100 mi40.84 LC100 mi41.68 LC100 mi
Annual fuel used2,175 L575 US gal478 UK gal2,220 L586 US gal488 UK gal
Annual fuel cost3,806 LC/year3,885 LC/year

Head-to-head comparisons

Maserati GranCabrio I Sport 4.7 V8

  • Is 650 kg lighter
  • Is 0.8 s quicker from 0-100 km/h
  • Has 35 km/h (22 mph) higher top speed
  • Uses 0.3 L/100 km less fuel
  • Has 57 hp/t better power-to-weight
  • Emits 10 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio

Cons

  • Smallest trunk

Rolls-Royce Phantom Drophead Coupe Facelift 2012 6.7 V12

  • Has 200 Nm more
  • Has 23 km (14 mi) more estimated range
  • Has 222 L more trunk volume

Pros

  • Highest torque
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Maserati GranCabrio I Sport 4.7 V8
Rolls-Royce Phantom Drophead Coupe 6.7 V12
Compare selected cars
2 vehicles selected

Popular comparisons

Sport 4.7 V8
Sport 4.7 V8
VS
MaseratiGranCabrio ISport 4.7 V8vsMaseratiGranCabrio IFacelift 2018Sport 4.7 V8
6.7 V12
4.2 FSI
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsAUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI
Sport 4.7 V8
3.0 V6
VS
MaseratiGranCabrio ISport 4.7 V8vsMaseratiGranCabrio IIFacelift 20263.0 V6
6.7 V12
650i
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsBMW6 Series Convertible (F12)650i
Sport 4.7 V8
Trofeo 3.0 V6
VS
MaseratiGranCabrio ISport 4.7 V8vsMaseratiGranCabrio IITrofeo 3.0 V6
6.7 V12
S 500 V8
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsMercedes-BenzS-class Cabriolet (A217)S 500 V8
6.7 V12
MC 4.7 V8
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsMaseratiGranCabrio IMC 4.7 V8
6.7 V12
V8 4.0
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsBentleyContinental GTC IIV8 4.0
6.7 V12
6.2 V8
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsChevroletCamaro VI Convertible6.2 V8
Sport 4.7 V8
Carrera 4 GTS 3.8
VS
MaseratiGranCabrio ISport 4.7 V8vsPorsche911 Cabriolet (991)Carrera 4 GTS 3.8
6.7 V12
S 560
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsMercedes-BenzS-class Cabriolet (A217)Facelift 2017S 560
6.7 V12
3.0
VS
Rolls-RoycePhantom Drophead CoupeFacelift 20126.7 V12vsBMWM4 Convertible (F83)3.0
Maserati GranCabrio I Sport 4.7 V8 vs Rolls-Royce Phantom Drophead Coupe · Facelift 2012 6.7 V12 - car comparison - FastVsFaster