Car comparison

Cadillac XLR V 4.4 i V8 32VvsRolls-Royce Phantom Coupe 6.75 i V12

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

New comparison

Cadillac XLR

V 4.4 i V8 32V

449 hp4371 ccGasolineRWDAutomaticSuperchargedCoupe2006-2009
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

Cadillac XLR V 4.4 i V8 32V

  • Quickest 0-100 km/h
    4.9 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,730 kg
    3,814 lb
  • Best power-to-weight
    260 hp/t
    194 kW/t
    3.9 kg/hp
  • Lowest city consumption
    21.1 L/100 km
    11.1 mpg US
    13.4 mpg UK
  • Lowest highway consumption
    11.3 L/100 km
    20.8 mpg US
    25.0 mpg UK
  • Best performance score
    78/100

Rolls-Royce Phantom Coupe 6.75 i V12

  • Most powerful
    460 hp
    343 kW
  • Highest torque
    720 Nm
    531 lb-ft
  • Largest trunk
    395 L
  • Best overall score
    70/100
  • Best economy score
    65/100
  • Best practicality score
    58/100

Specification comparison

Specification comparison
ModelCadillacXLRV 4.4 i V8 32VRolls-RoycePhantom Coupe6.75 i V12
Power
449hp335kW
460hp343kW
Torque
561Nm414lb-ft
720Nm531lb-ft
Curb weight
1,730kg3,814lb
2,590kg5,710lb
Gross weight-
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
61.8s99% target: 262 km/h / 163 mph
Calculated
104.7s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.9s
5.8s
0-200 km/h
16.5s
Calculated
23.1s
Calculated
0-60 mph
4.7s
Calculated
5.5s
Calculated
Fuel consumption-
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption city
21.1L/100 km11.1mpg US13.4mpg UK
23.2L/100 km10.1mpg US12.2mpg UK
Fuel consumption highway
11.3L/100 km20.8mpg US25.0mpg UK
11.3L/100 km20.8mpg US25.0mpg UK
Quarter mile
13.0s
Calculated
14.0s
Calculated
Power-to-weight
260hp/t194kW/t118hp/1000 lb
Calculated
178hp/t132kW/t81hp/1000 lb
Calculated
Torque-to-weight
324Nm/t217lb-ft/ton
Calculated
278Nm/t186lb-ft/ton
Calculated
Estimated range-
637km396mi
Calculated
Displacement
4,371cc267cu in
6,749cc412cu in
Length
4,513mm178in
5,609mm221in
Width
1,836mm72in
1,987mm78in
Height
1,279mm50in
1,592mm63in
Wheelbase
2,685mm106in
3,320mm131in
Front track
1,565mm62in
1,685mm66in
Rear track
1,578mm62in
1,670mm66in
Trunk volume
125L
395L
Max trunk volume
328L
-
Doors
2
2
Seats
2
5
Fuel tank
68L
100L

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.

Cadillac XLR V 4.4 i V8 32VRolls-Royce Phantom Coupe 6.75 i V12PowerTorque
  • Cadillac XLR V 4.4 i V8 32V: Power / Torque
  • Rolls-Royce Phantom Coupe 6.75 i V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
CadillacXLRV 4.4 i V8 32V6,400 rpm3,600 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
MetricCadillacXLRV 4.4 i V8 32VRolls-RoycePhantom Coupe6.75 i V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.7 s
5.5 s
0-100 km/h
0-62 mph
4.9 s
5.8 s
0-200 km/h
0-124 mph
16.5 s
23.1 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
2.2 s
2.2 s
330 ft
101 m
5.7 s
5.9 s
1/8 mile
201 m
8.5 s
9.0 s
1000 ft
305 m
10.9 s
11.7 s
1/4 mile
402 m
13.0 s
14.0 s
Trap speed
1/4 mile
402 m
180 km/h
112 mph
162 km/h
101 mph

Power comparison

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

Chart data table
VehicleValue
CadillacXLRV 4.4 i V8 32V
449 hp
335 kW
Rolls-RoycePhantom Coupe6.75 i V12
460 hp
343 kW

Rolls-Royce Phantom Coupe 6.75 i V12 has 11 hp more than Cadillac XLR V 4.4 i V8 32V.

The biggest power difference is between Cadillac XLR V 4.4 i V8 32V and Rolls-Royce Phantom Coupe 6.75 i V12: 11 hp (8 kW).

Torque comparison

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

Chart data table
VehicleValue
CadillacXLRV 4.4 i V8 32V
561 Nm
414 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
CadillacXLRV 4.4 i V8 32V
1,730 kg
3,814 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
CadillacXLRV 4.4 i V8 32V
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
CadillacXLRV 4.4 i V8 32V4.9 s
Rolls-RoycePhantom Coupe6.75 i V125.8 s

Although Rolls-Royce Phantom Coupe 6.75 i V12 has more power, Cadillac XLR V 4.4 i V8 32V is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Cadillac XLR V 4.4 i V8 32V and Rolls-Royce Phantom Coupe 6.75 i V12: 0.9 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
CadillacXLRV 4.4 i V8 32V
260 hp/t
194 kW/t
3.9 kg/hp
Rolls-RoycePhantom Coupe6.75 i V12
178 hp/t
132 kW/t
5.6 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
CadillacXLRV 4.4 i V8 32V
449 hp
335 kW
4.9 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
CadillacXLRV 4.4 i V8 32V
Power
449 hp
335 kW
0-100 km/h4.9 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
125 L
4.4 cu ft
Length
4,513 mm
177.7 in
Height
1,279 mm
50.4 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

Detailed score breakdown

Detailed score breakdown
VehicleCadillacXLRV 4.4 i V8 32VRolls-RoycePhantom Coupe6.75 i V12
Power
449 hp
335 kW
460 hp
343 kW
Torque
561 Nm
414 lb-ft
720 Nm
531 lb-ft
Acceleration
4.9 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
1,730 kg
3,814 lb
2,590 kg
5,710 lb
Fuel consumption
-
15.7 L/100 km
15.0 mpg US
18.0 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
125 L
4.4 cu ft
Length
4,513 mm
177.7 in
Height
1,279 mm
50.4 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
-
637 km
396 mi
Trunk score
125 L
4.4 cu ft
395 L
13.9 cu ft
Power-to-weight score
260 hp/t
194 kW/t
3.9 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
VehicleRolls-Royce Phantom Coupe 6.75 i V12
Consumption15.7 L/100 km15 mpg US18 mpg UK
Cost / 100 km27.47 LC100 km
Cost / 100 mi44.22 LC100 mi
Annual fuel used2,355 L622 US gal518 UK gal
Annual fuel cost4,121 LC/year

Head-to-head comparisons

Cadillac XLR V 4.4 i V8 32V

  • Is 860 kg lighter
  • Is 0.9 s quicker from 0-100 km/h
  • Has 82 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
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Cadillac XLR V 4.4 i V8 32V
Rolls-Royce Phantom Coupe 6.75 i V12
Compare selected cars
2 vehicles selected

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