Car comparison

Bentley Continental GTC II · Facelift 2015 Speed 6.0vsRolls-Royce Dawn 6.6 V12

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

New comparison

Bentley Continental GTC II · Facelift 2015

Speed 6.0

635 hp5998 ccGasolineAWDAutomaticTwin-turboCabriolet / convertible2015-2018
VS

Rolls-Royce Dawn

6.6 V12

601 hp6592 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2017-present

Comparison overview

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

Best choices

Bentley Continental GTC II Facelift 2015 Speed 6.0

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    327 km/h
    203 mph
  • Most powerful
    635 hp
    474 kW
  • Lightest
    2,495 kg
    5,501 lb
  • Best power-to-weight
    255 hp/t
    190 kW/t
    3.9 kg/hp
  • Lowest city consumption
    22.3 L/100 km
    10.5 mpg US
    12.7 mpg UK
  • Best overall score
    73/100
  • Best performance score
    86/100
  • Best economy score
    67/100

Rolls-Royce Dawn 6.6 V12

  • Highest torque
    840 Nm
    620 lb-ft
  • Lowest combined fuel consumption
    14.7 L/100 km
    16.0 mpg US
    19.2 mpg UK
  • Lowest highway consumption
    10.1 L/100 km
    23.3 mpg US
    28.0 mpg UK
  • Lowest CO2 emissions
    337 g/km
  • Largest trunk
    321 L
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelBentleyContinental GTC IIFacelift 2015Speed 6.0Rolls-RoyceDawn6.6 V12
Power
635hp474kW
601hp448kW
Torque
820Nm605lb-ft
840Nm620lb-ft
Curb weight
2,495kg5,501lb
2,560kg5,644lb
Gross weight
2,900kg6,393lb
-
Top speed
327 km/h
203 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
86.0s99% target: 324 km/h / 201 mph
Calculated
73.6s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.4s
4.9s
0-200 km/h
13.4s
Calculated
18.6s
Calculated
0-60 mph
4.2s
Calculated
4.6s
Calculated
Fuel consumption
14.9L/100 km15.8mpg US19.0mpg UK
14.7L/100 km16mpg US19.2mpg UK
Fuel consumption city
22.3L/100 km10.5mpg US12.7mpg UK
22.9L/100 km10.3mpg US12.3mpg UK
Fuel consumption highway
10.5L/100 km22.4mpg US26.9mpg UK
10.1L/100 km23.3mpg US28.0mpg UK
Quarter mile
12.3s
Calculated
13.1s
Calculated
Power-to-weight
255hp/t190kW/t115hp/1000 lb
Calculated
235hp/t175kW/t106hp/1000 lb
Calculated
Torque-to-weight
329Nm/t220lb-ft/ton
Calculated
328Nm/t220lb-ft/ton
Calculated
Estimated range
604km375mi
Calculated
-
Displacement
5,998cc366cu in
6,592cc402cu in
Length
4,806mm189in
5,285mm208in
Width
1,944mm77in
1,947mm77in
Height
1,393mm55in
1,502mm59in
Wheelbase
2,746mm108in
3,112mm123in
Front track
1,664mm66in
1,618mm64in
Rear track
1,655mm65in
1,665mm66in
Trunk volume
260L
321L
Doors
2
2
Seats
4
4
Fuel tank
90L
-
CO2 emissions
347g/km
337g/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.

Bentley Continental GTC II Facelift 2015 Speed 6.0Rolls-Royce Dawn 6.6 V12PowerTorque
  • Bentley Continental GTC II Facelift 2015 Speed 6.0: Power / Torque
  • Rolls-Royce Dawn 6.6 V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BentleyContinental GTC IIFacelift 2015Speed 6.06,000 rpm-6,250 rpm
Rolls-RoyceDawn6.6 V125,250-6,000 rpm1,650-4,750 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBentleyContinental GTC IIFacelift 2015Speed 6.0Rolls-RoyceDawn6.6 V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.6 s
0-100 km/h
0-62 mph
4.4 s
4.9 s
0-200 km/h
0-124 mph
13.4 s
18.6 s
0-200 mph
0-322 km/h
76.2 s
-
Top speed
327 km/h
203 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.1 s
330 ft
101 m
5.4 s
5.6 s
1/8 mile
201 m
8.1 s
8.5 s
1000 ft
305 m
10.4 s
11.0 s
1/4 mile
402 m
12.3 s
13.1 s
Trap speed
1/4 mile
402 m
191 km/h
119 mph
173 km/h
108 mph

Power comparison

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

Chart data table
VehicleValue
BentleyContinental GTC IIFacelift 2015Speed 6.0
635 hp
474 kW
Rolls-RoyceDawn6.6 V12
601 hp
448 kW

Bentley Continental GTC II Facelift 2015 Speed 6.0 has 34 hp more than Rolls-Royce Dawn 6.6 V12.

The biggest power difference is between Rolls-Royce Dawn 6.6 V12 and Bentley Continental GTC II Facelift 2015 Speed 6.0: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BentleyContinental GTC IIFacelift 2015Speed 6.0
820 Nm
605 lb-ft
Rolls-RoyceDawn6.6 V12
840 Nm
620 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BentleyContinental GTC IIFacelift 2015Speed 6.0
2,495 kg
5,501 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
BentleyContinental GTC IIFacelift 2015Speed 6.0
327 km/h
203 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
BentleyContinental GTC IIFacelift 2015Speed 6.04.4 s
Rolls-RoyceDawn6.6 V124.9 s

The biggest 0-100 km/h difference is between Bentley Continental GTC II Facelift 2015 Speed 6.0 and Rolls-Royce Dawn 6.6 V12: 0.5 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BentleyContinental GTC IIFacelift 2015Speed 6.0
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
Rolls-RoyceDawn6.6 V12
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
BentleyContinental GTC IIFacelift 2015Speed 6.0
255 hp/t
190 kW/t
3.9 kg/hp
Rolls-RoyceDawn6.6 V12
235 hp/t
175 kW/t
4.3 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BentleyContinental GTC IIFacelift 2015Speed 6.0
635 hp
474 kW
4.4 s
327 km/h
203 mph
Rolls-RoyceDawn6.6 V12
601 hp
448 kW
4.9 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
BentleyContinental GTC IIFacelift 2015Speed 6.0
Power
635 hp
474 kW
0-100 km/h4.4 s
Top speed
327 km/h
203 mph
Doors/seats
2 doors
4 seats
Trunk
260 L
9.2 cu ft
Length
4,806 mm
189.2 in
Height
1,393 mm
54.8 in
Rolls-RoyceDawn6.6 V12
Power
601 hp
448 kW
0-100 km/h4.9 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
BentleyContinental GTC IIFacelift 2015Speed 6.0
Power
635 hp
474 kW
0-100 km/h4.4 s
Top speed
327 km/h
203 mph
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
Rolls-RoyceDawn6.6 V12
Power
601 hp
448 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

Bentley Continental GTC II Facelift 2015 Speed 6.0 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
BentleyContinental GTC IIFacelift 2015Speed 6.0
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
4.4 s
Rolls-RoyceDawn6.6 V12
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
4.9 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
BentleyContinental GTC IIFacelift 2015Speed 6.0
255 hp/t
190 kW/t
3.9 kg/hp
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
Rolls-RoyceDawn6.6 V12
235 hp/t
175 kW/t
4.3 kg/hp
14.7 L/100 km
16.0 mpg US
19.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBentleyContinental GTC IIFacelift 2015Speed 6.0Rolls-RoyceDawn6.6 V12
Power
635 hp
474 kW
601 hp
448 kW
Torque
820 Nm
605 lb-ft
840 Nm
620 lb-ft
Acceleration
4.4 s
4.9 s
Top speed
327 km/h
203 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
2,495 kg
5,501 lb
2,560 kg
5,644 lb
Fuel consumption
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
14.7 L/100 km
16.0 mpg US
19.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
260 L
9.2 cu ft
Length
4,806 mm
189.2 in
Height
1,393 mm
54.8 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
604 km
375 mi
-
CO2 score
347 g/km
337 g/km
Trunk score
260 L
9.2 cu ft
321 L
11.3 cu ft
Power-to-weight score
255 hp/t
190 kW/t
3.9 kg/hp
235 hp/t
175 kW/t
4.3 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
VehicleBentley Continental GTC II Facelift 2015 Speed 6.0Rolls-Royce Dawn 6.6 V12
Consumption14.9 L/100 km15.8 mpg US19 mpg UK14.7 L/100 km16 mpg US19.2 mpg UK
Cost / 100 km26.08 LC100 km25.72 LC100 km
Cost / 100 mi41.96 LC100 mi41.40 LC100 mi
Annual fuel used2,235 L590 US gal492 UK gal2,205 L582 US gal485 UK gal
Annual fuel cost3,911 LC/year3,859 LC/year

Head-to-head comparisons

Bentley Continental GTC II Facelift 2015 Speed 6.0

  • Has 34 hp more
  • Is 65 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 67 km/h (42 mph) higher top speed
  • Has 20 hp/t better power-to-weight

Pros

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

Cons

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

Rolls-Royce Dawn 6.6 V12

  • Has 20 Nm more
  • Uses 0.2 L/100 km less fuel
  • Has 61 L more trunk volume
  • Emits 10 g/km less CO2

Pros

  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Bentley Continental GTC II Speed 6.0
Rolls-Royce Dawn 6.6 V12
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