Car comparison

BMW 6 Series Coupe (F13) 650ivsRolls-Royce Phantom Coupe 6.75 i V12

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

New comparison

BMW 6 Series Coupe (F13)

650i

407 hp4395 ccGasolineAWDAutomaticTurbochargedCoupe2011-2012
VS

Rolls-Royce Phantom Coupe

6.75 i V12

460 hp6749 ccGasolineRWDAutomaticNaturally aspiratedCoupe2008-2012

Comparison overview

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

Best choices

BMW 6 Series Coupe (F13) 650i

  • Quickest 0-100 km/h
    4.8 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,845 kg
    4,068 lb
  • Best power-to-weight
    221 hp/t
    164 kW/t
    4.5 kg/hp
  • Lowest combined fuel consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Lowest city consumption
    16.5 L/100 km
    14.3 mpg US
    17.1 mpg UK
  • Lowest highway consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Largest trunk
    460 L
  • Best performance score
    76/100
  • Best economy score
    77/100

Specification comparison

Specification comparison
ModelBMW6 Series Coupe (F13)650iRolls-RoycePhantom Coupe6.75 i V12
Power
407hp304kW
460hp343kW
Torque
600Nm443lb-ft
720Nm531lb-ft
Curb weight
1,845kg4,068lb
2,590kg5,710lb
Gross weight
2,350kg5,181lb
3,050kg6,724lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
68.5s99% target: 262 km/h / 163 mph
Calculated
105.7s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.8s
5.8s
0-200 km/h
17.1s
Calculated
23.2s
Calculated
0-60 mph
4.6s
Calculated
5.5s
Calculated
Fuel consumption
11.3L/100 km20.8mpg US25.0mpg UK
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption city
16.5L/100 km14.3mpg US17.1mpg UK
23.2L/100 km10.1mpg US12.2mpg UK
Fuel consumption highway
8.3L/100 km28.3mpg US34.0mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Quarter mile
12.9s
Calculated
14.0s
Calculated
Power-to-weight
221hp/t164kW/t100hp/1000 lb
Calculated
178hp/t132kW/t81hp/1000 lb
Calculated
Torque-to-weight
325Nm/t218lb-ft/ton
Calculated
278Nm/t186lb-ft/ton
Calculated
Estimated range
619km385mi
Calculated
637km396mi
Calculated
Displacement
4,395cc268cu in
6,749cc412cu in
Length
4,894mm193in
5,609mm221in
Width
1,894mm75in
1,987mm78in
Height
1,369mm54in
1,592mm63in
Wheelbase
2,855mm112in
3,320mm131in
Front track
1,600mm63in
1,685mm66in
Rear track
1,657mm65in
1,670mm66in
Ground clearance
124mm5in
-
Trunk volume
460L
395L
Doors
2
2
Seats
4
5
Fuel tank
70L
100L
CO2 emissions
263g/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.

BMW 6 Series Coupe (F13) 650iRolls-Royce Phantom Coupe 6.75 i V12PowerTorque
  • BMW 6 Series Coupe (F13) 650i: Power / Torque
  • Rolls-Royce Phantom Coupe 6.75 i V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW6 Series Coupe (F13)650i5,500-6,400 rpm1,750-4,500 rpm6,650 rpm
Rolls-RoycePhantom Coupe6.75 i V125,350 rpm3,500 rpm5,600 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW6 Series Coupe (F13)650iRolls-RoycePhantom Coupe6.75 i V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.6 s
5.5 s
0-100 km/h
0-62 mph
4.8 s
5.8 s
0-200 km/h
0-124 mph
17.1 s
23.2 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.2 s
330 ft
101 m
5.6 s
5.9 s
1/8 mile
201 m
8.4 s
9.0 s
1000 ft
305 m
10.9 s
11.7 s
1/4 mile
402 m
12.9 s
14.0 s
Trap speed
1/4 mile
402 m
177 km/h
110 mph
162 km/h
101 mph

Power comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
407 hp
304 kW
Rolls-RoycePhantom Coupe6.75 i V12
460 hp
343 kW

Rolls-Royce Phantom Coupe 6.75 i V12 has 53 hp more than BMW 6 Series Coupe (F13) 650i.

The biggest power difference is between BMW 6 Series Coupe (F13) 650i and Rolls-Royce Phantom Coupe 6.75 i V12: 53 hp (40 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
600 Nm
443 lb-ft
Rolls-RoycePhantom Coupe6.75 i V12
720 Nm
531 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
1,845 kg
4,068 lb
Rolls-RoycePhantom Coupe6.75 i V12
2,590 kg
5,710 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Rolls-RoycePhantom Coupe6.75 i 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
BMW6 Series Coupe (F13)650i4.8 s
Rolls-RoycePhantom Coupe6.75 i V125.8 s

Although Rolls-Royce Phantom Coupe 6.75 i V12 has more power, BMW 6 Series Coupe (F13) 650i is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between BMW 6 Series Coupe (F13) 650i and Rolls-Royce Phantom Coupe 6.75 i V12: 1.0 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Rolls-RoycePhantom Coupe6.75 i V12
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Coupe (F13) 650i and Rolls-Royce Phantom Coupe 6.75 i V12: 4.4 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
BMW6 Series Coupe (F13)650i
221 hp/t
164 kW/t
4.5 kg/hp
Rolls-RoycePhantom Coupe6.75 i V12
178 hp/t
132 kW/t
5.6 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW6 Series Coupe (F13)650i
619 km
385 mi
Rolls-RoycePhantom Coupe6.75 i V12
637 km
396 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW6 Series Coupe (F13)650i
407 hp
304 kW
4.8 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Rolls-RoycePhantom Coupe6.75 i V12
460 hp
343 kW
5.8 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
BMW6 Series Coupe (F13)650i
Power
407 hp
304 kW
0-100 km/h4.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
460 L
16.2 cu ft
Length
4,894 mm
192.7 in
Height
1,369 mm
53.9 in
Rolls-RoycePhantom Coupe6.75 i V12
Power
460 hp
343 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
5 seats
Trunk
395 L
13.9 cu ft
Length
5,609 mm
220.8 in
Height
1,592 mm
62.7 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
BMW6 Series Coupe (F13)650i
Power
407 hp
304 kW
0-100 km/h4.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Rolls-RoycePhantom Coupe6.75 i V12
Power
460 hp
343 kW
0-100 km/h5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

BMW 6 Series Coupe (F13) 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
VehicleFuel consumption, L/100 km0-100 km/h, s
BMW6 Series Coupe (F13)650i
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
4.8 s
Rolls-RoycePhantom Coupe6.75 i V12
15.7 L/100 km
15.0 mpg US
18.0 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
BMW6 Series Coupe (F13)650i
221 hp/t
164 kW/t
4.5 kg/hp
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
Rolls-RoycePhantom Coupe6.75 i V12
178 hp/t
132 kW/t
5.6 kg/hp
15.7 L/100 km
15.0 mpg US
18.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW6 Series Coupe (F13)650iRolls-RoycePhantom Coupe6.75 i V12
Power
407 hp
304 kW
460 hp
343 kW
Torque
600 Nm
443 lb-ft
720 Nm
531 lb-ft
Acceleration
4.8 s
5.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,845 kg
4,068 lb
2,590 kg
5,710 lb
Fuel consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
460 L
16.2 cu ft
Length
4,894 mm
192.7 in
Height
1,369 mm
53.9 in
Doors/seats
2 doors
5 seats
Trunk
395 L
13.9 cu ft
Length
5,609 mm
220.8 in
Height
1,592 mm
62.7 in
Range score
619 km
385 mi
637 km
396 mi
CO2 score
263 g/km
-
Trunk score
460 L
16.2 cu ft
395 L
13.9 cu ft
Power-to-weight score
221 hp/t
164 kW/t
4.5 kg/hp
178 hp/t
132 kW/t
5.6 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
VehicleBMW 6 Series Coupe (F13) 650iRolls-Royce Phantom Coupe 6.75 i V12
Consumption11.3 L/100 km20.8 mpg US25 mpg UK15.7 L/100 km15 mpg US18 mpg UK
Cost / 100 km19.78 LC100 km27.47 LC100 km
Cost / 100 mi31.82 LC100 mi44.22 LC100 mi
Annual fuel used1,695 L448 US gal373 UK gal2,355 L622 US gal518 UK gal
Annual fuel cost2,966 LC/year4,121 LC/year

Head-to-head comparisons

BMW 6 Series Coupe (F13) 650i

  • Is 745 kg lighter
  • Is 1.0 s quicker from 0-100 km/h
  • Uses 4.4 L/100 km less fuel
  • Has 43 hp/t better power-to-weight
  • Has 65 L more trunk volume

Pros

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

Cons

  • Lowest power

Rolls-Royce Phantom Coupe 6.75 i V12

  • Has 53 hp more
  • Has 120 Nm more
  • Has 17 km (11 mi) more estimated range

Pros

  • Most powerful
  • Highest torque
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 6 Series Coupe (F13) 650i
Rolls-Royce Phantom Coupe 6.75 i V12
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2 vehicles selected

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