Car comparison

Bentley Mulsanne II · Facelift 2016 Speed 6.75 V8vsRolls-Royce Phantom VIII 6.7 V12

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

New comparison

Bentley Mulsanne II · Facelift 2016

Speed 6.75 V8

537 hp6752 ccGasolineRWDAutomaticTwin-turboSedan2016-2020
VS

Rolls-Royce Phantom VIII

6.7 V12

571 hp6749 ccGasolineRWDAutomaticTwin-turboSedan2017-present

Comparison overview

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

Best choices

Rolls-Royce Phantom VIII 6.7 V12

  • Most powerful
    571 hp
    426 kW
  • Lightest
    2,560 kg
    5,644 lb
  • Best power-to-weight
    223 hp/t
    166 kW/t
    4.5 kg/hp
  • Lowest combined fuel consumption
    13.9 L/100 km
    16.9 mpg US
    20.3 mpg UK
  • Lowest city consumption
    21.3 L/100 km
    11.0 mpg US
    13.3 mpg UK
  • Lowest highway consumption
    9.7 L/100 km
    24.2 mpg US
    29.1 mpg UK
  • Lowest CO2 emissions
    318 g/km
  • Largest trunk
    548 L
  • Best economy score
    70/100

Specification comparison

Specification comparison
ModelBentleyMulsanne IIFacelift 2016Speed 6.75 V8Rolls-RoycePhantom VIII6.7 V12
Power
537hp400kW
571hp426kW
Torque
1,100Nm811lb-ft
900Nm664lb-ft
Curb weight
2,685kg5,919lb
2,560kg5,644lb
Gross weight
3,200kg7,055lb
-
Top speed
305 km/h
190 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
63.3s99% target: 302 km/h / 188 mph
Calculated
57.3s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.9s
5.3s
0-200 km/h
13.7s
Calculated
16.6s
Calculated
0-60 mph
4.7s
Calculated
5.1s
Calculated
Fuel consumption
14.6L/100 km16.1mpg US19.3mpg UK
13.9L/100 km16.9mpg US20.3mpg UK
Fuel consumption city
22.8L/100 km10.3mpg US12.4mpg UK
21.3L/100 km11mpg US13.3mpg UK
Fuel consumption highway
9.9L/100 km23.8mpg US28.5mpg UK
9.7L/100 km24.2mpg US29.1mpg UK
Quarter mile
12.7s
Calculated
13.3s
Calculated
Power-to-weight
200hp/t149kW/t91hp/1000 lb
Calculated
223hp/t166kW/t101hp/1000 lb
Calculated
Torque-to-weight
410Nm/t274lb-ft/ton
Calculated
352Nm/t235lb-ft/ton
Calculated
Estimated range
658km409mi
Calculated
-
Displacement
6,752cc412cu in
6,749cc412cu in
Length
5,575mm219in
5,762mm227in
Width
1,926mm76in
2,018mm79in
Height
1,521mm60in
1,646mm65in
Wheelbase
3,266mm129in
3,552mm140in
Front track
1,605mm63in
-
Rear track
1,651mm65in
-
Trunk volume
443L
548L
Doors
4
4
Seats
5
4
Fuel tank
96L
-
CO2 emissions
342g/km
318g/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 Mulsanne II Facelift 2016 Speed 6.75 V8Rolls-Royce Phantom VIII 6.7 V12PowerTorque
  • Bentley Mulsanne II Facelift 2016 Speed 6.75 V8: Power / Torque
  • Rolls-Royce Phantom VIII 6.7 V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BentleyMulsanne IIFacelift 2016Speed 6.75 V84,000 rpm1,750 rpm4,250 rpm
Rolls-RoycePhantom VIII6.7 V125,000 rpm1,700 rpm5,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBentleyMulsanne IIFacelift 2016Speed 6.75 V8Rolls-RoycePhantom VIII6.7 V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.1 s
0-100 km/h
0-62 mph
4.9 s
5.3 s
0-200 km/h
0-124 mph
13.7 s
16.6 s
Top speed
305 km/h
190 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.4 s
330 ft
101 m
5.8 s
6.0 s
1/8 mile
201 m
8.5 s
8.8 s
1000 ft
305 m
10.8 s
11.3 s
1/4 mile
402 m
12.7 s
13.3 s
Trap speed
1/4 mile
402 m
192 km/h
119 mph
180 km/h
112 mph

Power comparison

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

Chart data table
VehicleValue
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
537 hp
400 kW
Rolls-RoycePhantom VIII6.7 V12
571 hp
426 kW

Rolls-Royce Phantom VIII 6.7 V12 has 34 hp more than Bentley Mulsanne II Facelift 2016 Speed 6.75 V8.

The biggest power difference is between Bentley Mulsanne II Facelift 2016 Speed 6.75 V8 and Rolls-Royce Phantom VIII 6.7 V12: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
1,100 Nm
811 lb-ft
Rolls-RoycePhantom VIII6.7 V12
900 Nm
664 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
2,685 kg
5,919 lb
Rolls-RoycePhantom VIII6.7 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
305 km/h
190 mph
Rolls-RoycePhantom VIII6.7 V12
Unrestricted
265 km/h165 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V84.9 s
Rolls-RoycePhantom VIII6.7 V125.3 s

Although Rolls-Royce Phantom VIII 6.7 V12 has more power, Bentley Mulsanne II Facelift 2016 Speed 6.75 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Bentley Mulsanne II Facelift 2016 Speed 6.75 V8 and Rolls-Royce Phantom VIII 6.7 V12: 0.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
Rolls-RoycePhantom VIII6.7 V12
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

The biggest fuel consumption difference is between Rolls-Royce Phantom VIII 6.7 V12 and Bentley Mulsanne II Facelift 2016 Speed 6.75 V8: 0.7 L/100 km.

Power-to-weight comparison

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

Chart data table
VehicleValue
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
200 hp/t
149 kW/t
5.0 kg/hp
Rolls-RoycePhantom VIII6.7 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
537 hp
400 kW
4.9 s
305 km/h
190 mph
Rolls-RoycePhantom VIII6.7 V12
571 hp
426 kW
5.3 s
Unrestricted
265 km/h165 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
Power
537 hp
400 kW
0-100 km/h4.9 s
Top speed
305 km/h
190 mph
Doors/seats
4 doors
5 seats
Trunk
443 L
15.6 cu ft
Length
5,575 mm
219.5 in
Height
1,521 mm
59.9 in
Rolls-RoycePhantom VIII6.7 V12
Power
571 hp
426 kW
0-100 km/h5.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
4 seats
Trunk
548 L
19.4 cu ft
Length
5,762 mm
226.9 in
Height
1,646 mm
64.8 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
Power
537 hp
400 kW
0-100 km/h4.9 s
Top speed
305 km/h
190 mph
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
Rolls-RoycePhantom VIII6.7 V12
Power
571 hp
426 kW
0-100 km/h5.3 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

Bentley Mulsanne II Facelift 2016 Speed 6.75 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
4.9 s
Rolls-RoycePhantom VIII6.7 V12
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
5.3 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
BentleyMulsanne IIFacelift 2016Speed 6.75 V8
200 hp/t
149 kW/t
5.0 kg/hp
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
Rolls-RoycePhantom VIII6.7 V12
223 hp/t
166 kW/t
4.5 kg/hp
13.9 L/100 km
16.9 mpg US
20.3 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBentleyMulsanne IIFacelift 2016Speed 6.75 V8Rolls-RoycePhantom VIII6.7 V12
Power
537 hp
400 kW
571 hp
426 kW
Torque
1,100 Nm
811 lb-ft
900 Nm
664 lb-ft
Acceleration
4.9 s
5.3 s
Top speed
305 km/h
190 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
2,685 kg
5,919 lb
2,560 kg
5,644 lb
Fuel consumption
14.6 L/100 km
16.1 mpg US
19.3 mpg UK
13.9 L/100 km
16.9 mpg US
20.3 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
443 L
15.6 cu ft
Length
5,575 mm
219.5 in
Height
1,521 mm
59.9 in
Doors/seats
4 doors
4 seats
Trunk
548 L
19.4 cu ft
Length
5,762 mm
226.9 in
Height
1,646 mm
64.8 in
Range score
658 km
409 mi
-
CO2 score
342 g/km
318 g/km
Trunk score
443 L
15.6 cu ft
548 L
19.4 cu ft
Power-to-weight score
200 hp/t
149 kW/t
5.0 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
VehicleBentley Mulsanne II Facelift 2016 Speed 6.75 V8Rolls-Royce Phantom VIII 6.7 V12
Consumption14.6 L/100 km16.1 mpg US19.3 mpg UK13.9 L/100 km16.9 mpg US20.3 mpg UK
Cost / 100 km25.55 LC100 km24.33 LC100 km
Cost / 100 mi41.12 LC100 mi39.15 LC100 mi
Annual fuel used2,190 L579 US gal482 UK gal2,085 L551 US gal459 UK gal
Annual fuel cost3,833 LC/year3,649 LC/year

Head-to-head comparisons

Bentley Mulsanne II Facelift 2016 Speed 6.75 V8

  • Has 200 Nm more
  • Is 0.4 s quicker from 0-100 km/h
  • Has 40 km/h (25 mph) higher top speed

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Highest torque

Cons

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

Rolls-Royce Phantom VIII 6.7 V12

  • Has 34 hp more
  • Is 125 kg lighter
  • Uses 0.7 L/100 km less fuel
  • Has 23 hp/t better power-to-weight
  • Has 105 L more trunk volume
  • Emits 24 g/km less CO2

Pros

  • Most powerful
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Bentley Mulsanne II Speed 6.75 V8
Rolls-Royce Phantom VIII 6.7 V12
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Bentley Mulsanne II · Facelift 2016 Speed 6.75 V8 vs Rolls-Royce Phantom VIII 6.7 V12 - car comparison - FastVsFaster