Car comparison

Maserati GranCabrio I MC 4.7 V8vsRolls-Royce Dawn 6.6 V12

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

New comparison

Maserati GranCabrio I

MC 4.7 V8

460 hp4691 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2013-2017
VS

Rolls-Royce Dawn

6.6 V12

571 hp6592 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2015-present

Comparison overview

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

Best choices

Rolls-Royce Dawn 6.6 V12

  • Most powerful
    571 hp
    426 kW
  • Highest torque
    820 Nm
    605 lb-ft
  • Lowest combined fuel consumption
    14.4 L/100 km
    16.3 mpg US
    19.6 mpg UK
  • Lowest city consumption
    22.1 L/100 km
    10.6 mpg US
    12.8 mpg UK
  • Lowest CO2 emissions
    330 g/km
  • Largest trunk
    321 L
  • Best overall score
    69/100
  • Best performance score
    79/100
  • Best practicality score
    47/100

Maserati GranCabrio I MC 4.7 V8

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    289 km/h
    180 mph
  • Lightest
    1,973 kg
    4,350 lb
  • Best power-to-weight
    233 hp/t
    174 kW/t
    4.3 kg/hp
  • Lowest highway consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Best economy score
    68/100

Specification comparison

Specification comparison
ModelMaseratiGranCabrio IMC 4.7 V8Rolls-RoyceDawn6.6 V12
Power
460hp343kW
571hp426kW
Torque
520Nm384lb-ft
820Nm605lb-ft
Curb weight
1,973kg4,350lb
2,560kg5,644lb
Top speed
289 km/h
180 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
76.7s99% target: 286 km/h / 178 mph
Calculated
77.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.9s
5.0s
0-200 km/h
15.9s
Calculated
19.2s
Calculated
0-60 mph
4.7s
Calculated
4.7s
Calculated
Fuel consumption
14.5L/100 km16.2mpg US19.5mpg UK
14.4L/100 km16.3mpg US19.6mpg UK
Fuel consumption city
22.5L/100 km10.5mpg US12.6mpg UK
22.1L/100 km10.6mpg US12.8mpg UK
Fuel consumption highway
9.8L/100 km24mpg US28.8mpg UK
10L/100 km23.5mpg US28.2mpg UK
Quarter mile
12.9s
Calculated
13.2s
Calculated
Power-to-weight
233hp/t174kW/t106hp/1000 lb
Calculated
223hp/t166kW/t101hp/1000 lb
Calculated
Torque-to-weight
264Nm/t176lb-ft/ton
Calculated
320Nm/t214lb-ft/ton
Calculated
Estimated range
517km321mi
Calculated
-
Displacement
4,691cc286cu in
6,592cc402cu in
Length
4,933mm194in
5,285mm208in
Width
1,915mm75in
1,947mm77in
Height
1,343mm53in
1,502mm59in
Wheelbase
2,942mm116in
3,112mm123in
Front track
1,586mm62in
-
Rear track
1,590mm63in
-
Trunk volume
173L
321L
Doors
2
2
Seats
4
4
Fuel tank
75L
-
CO2 emissions
337g/km
330g/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 MC 4.7 V8Rolls-Royce Dawn 6.6 V12PowerTorque
  • Maserati GranCabrio I MC 4.7 V8: Power / Torque
  • Rolls-Royce Dawn 6.6 V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
MaseratiGranCabrio IMC 4.7 V87,000 rpm4,750 rpm7,250 rpm
Rolls-RoyceDawn6.6 V125,250-6,000 rpm1,500-5,000 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMaseratiGranCabrio IMC 4.7 V8Rolls-RoyceDawn6.6 V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
4.7 s
0-100 km/h
0-62 mph
4.9 s
5.0 s
0-200 km/h
0-124 mph
15.9 s
19.2 s
Top speed
289 km/h
180 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
5.7 s
5.7 s
1/8 mile
201 m
8.5 s
8.6 s
1000 ft
305 m
10.9 s
11.1 s
1/4 mile
402 m
12.9 s
13.2 s
Trap speed
1/4 mile
402 m
181 km/h
113 mph
172 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio IMC 4.7 V8
460 hp
343 kW
Rolls-RoyceDawn6.6 V12
571 hp
426 kW

Rolls-Royce Dawn 6.6 V12 has 111 hp more than Maserati GranCabrio I MC 4.7 V8.

The biggest power difference is between Maserati GranCabrio I MC 4.7 V8 and Rolls-Royce Dawn 6.6 V12: 111 hp (83 kW).

Torque comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio IMC 4.7 V8
520 Nm
384 lb-ft
Rolls-RoyceDawn6.6 V12
820 Nm
605 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
MaseratiGranCabrio IMC 4.7 V8
1,973 kg
4,350 lb
Rolls-RoyceDawn6.6 V12
2,560 kg
5,644 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 IMC 4.7 V8
289 km/h
180 mph
Rolls-RoyceDawn6.6 V12
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
VehicleValue
MaseratiGranCabrio IMC 4.7 V84.9 s
Rolls-RoyceDawn6.6 V125.0 s

Although Rolls-Royce Dawn 6.6 V12 has more power, Maserati GranCabrio I MC 4.7 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Maserati GranCabrio I MC 4.7 V8 and Rolls-Royce Dawn 6.6 V12: 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
VehicleValue
MaseratiGranCabrio IMC 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoyceDawn6.6 V12
14.4 L/100 km
16.3 mpg US
19.6 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 IMC 4.7 V8
233 hp/t
174 kW/t
4.3 kg/hp
Rolls-RoyceDawn6.6 V12
223 hp/t
166 kW/t
4.5 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
MaseratiGranCabrio IMC 4.7 V8
460 hp
343 kW
4.9 s
289 km/h
180 mph
Rolls-RoyceDawn6.6 V12
571 hp
426 kW
5.0 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.

Chart data table
VehiclePerformance scorePracticality score
MaseratiGranCabrio IMC 4.7 V8
Power
460 hp
343 kW
0-100 km/h4.9 s
Top speed
289 km/h
180 mph
Doors/seats
2 doors
4 seats
Trunk
173 L
6.1 cu ft
Length
4,933 mm
194.2 in
Height
1,343 mm
52.9 in
Rolls-RoyceDawn6.6 V12
Power
571 hp
426 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
321 L
11.3 cu ft
Length
5,285 mm
208.1 in
Height
1,502 mm
59.1 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 IMC 4.7 V8
Power
460 hp
343 kW
0-100 km/h4.9 s
Top speed
289 km/h
180 mph
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoyceDawn6.6 V12
Power
571 hp
426 kW
0-100 km/h5.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.4 L/100 km
16.3 mpg US
19.6 mpg UK

Rolls-Royce Dawn 6.6 V12 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 IMC 4.7 V8
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
4.9 s
Rolls-RoyceDawn6.6 V12
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
5.0 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 IMC 4.7 V8
233 hp/t
174 kW/t
4.3 kg/hp
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
Rolls-RoyceDawn6.6 V12
223 hp/t
166 kW/t
4.5 kg/hp
14.4 L/100 km
16.3 mpg US
19.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMaseratiGranCabrio IMC 4.7 V8Rolls-RoyceDawn6.6 V12
Power
460 hp
343 kW
571 hp
426 kW
Torque
520 Nm
384 lb-ft
820 Nm
605 lb-ft
Acceleration
4.9 s
5.0 s
Top speed
289 km/h
180 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,973 kg
4,350 lb
2,560 kg
5,644 lb
Fuel consumption
14.5 L/100 km
16.2 mpg US
19.5 mpg UK
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
173 L
6.1 cu ft
Length
4,933 mm
194.2 in
Height
1,343 mm
52.9 in
Doors/seats
2 doors
4 seats
Trunk
321 L
11.3 cu ft
Length
5,285 mm
208.1 in
Height
1,502 mm
59.1 in
Range score
517 km
321 mi
-
CO2 score
337 g/km
330 g/km
Trunk score
173 L
6.1 cu ft
321 L
11.3 cu ft
Power-to-weight score
233 hp/t
174 kW/t
4.3 kg/hp
223 hp/t
166 kW/t
4.5 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 MC 4.7 V8Rolls-Royce Dawn 6.6 V12
Consumption14.5 L/100 km16.2 mpg US19.5 mpg UK14.4 L/100 km16.3 mpg US19.6 mpg UK
Cost / 100 km25.38 LC100 km25.20 LC100 km
Cost / 100 mi40.84 LC100 mi40.56 LC100 mi
Annual fuel used2,175 L575 US gal478 UK gal2,160 L571 US gal475 UK gal
Annual fuel cost3,806 LC/year3,780 LC/year

Head-to-head comparisons

Maserati GranCabrio I MC 4.7 V8

  • Is 587 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 29 km/h (18 mph) higher top speed
  • Has 10 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

Rolls-Royce Dawn 6.6 V12

  • Has 111 hp more
  • Has 300 Nm more
  • Uses 0.1 L/100 km less fuel
  • Has 148 L more trunk volume
  • Emits 7 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Maserati GranCabrio I MC 4.7 V8
Rolls-Royce Dawn 6.6 V12
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