Car comparison

Mercedes-Benz S-class (W221) · Facelift 2009 AMG S 63 V8vsRolls-Royce Ghost I 6.6 V12 48V

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

New comparison

Mercedes-Benz S-class (W221) · Facelift 2009

AMG S 63 V8

544 hp5461 ccGasolineRWDAutomaticTwin-turboSedan2010-2013

Rolls-Royce Ghost I

6.6 V12 48V

570 hp6600 ccGasolineAutomaticTurbochargedSedan2009-2014

Comparison overview

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

Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8

Quickest 0-100 km/h
4.5 s
Fastest top speed
265 km/h
165 mph Unrestricted
250 km/h
155 mph Restricted
Highest torque
800 Nm
590 lb-ft
Lightest
2,045 kg
4,508 lb
Best power-to-weight
266 hp/t
198 kW/t
3.8 kg/hp
Best overall score
83/100
Best performance score
85/100
Best economy score
79/100

Rolls-Royce Ghost I 6.6 V12 48V

Most powerful
570 hp
425 kW
Best practicality score
80/100

Specification comparison

Specification comparison
Model	Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	Rolls-RoyceGhost I6.6 V12 48V
Power	544hp406kW	570hp425kW
Torque	800Nm590lb-ft	780Nm575lb-ft
Curb weight	2,045kg4,508lb	2,360kg5,203lb
Gross weight	2,670kg5,886lb	-
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	40.8s99% target: 262 km/h / 163 mph Calculated	53.2s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	4.5s	4.9s
0-200 km/h	12.9s Calculated	15.3s Calculated
0-60 mph	4.3s Calculated	4.7s Calculated
Fuel consumption	10.5L/100 km22.4mpg US26.9mpg UK	-
Fuel consumption city	14.4L/100 km16.3mpg US19.6mpg UK	-
Fuel consumption highway	8.2L/100 km28.7mpg US34.4mpg UK	-
Quarter mile	12.3s Calculated	12.9s Calculated
Power-to-weight	266hp/t198kW/t121hp/1000 lb Calculated	242hp/t180kW/t110hp/1000 lb Calculated
Torque-to-weight	391Nm/t262lb-ft/ton Calculated	331Nm/t221lb-ft/ton Calculated
Estimated range	857km533mi Calculated	-
Displacement	5,461cc333cu in	6,600cc403cu in
Length	5,096mm201in	5,399mm213in
Width	1,871mm74in	1,948mm77in
Height	1,479mm58in	1,550mm61in
Wheelbase	3,035mm119in	3,295mm130in
Front track	1,600mm63in	-
Rear track	1,606mm63in	-
Trunk volume	560L	-
Doors	4	4
Seats	5	5
Fuel tank	90L	-

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.

Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8Rolls-Royce Ghost I 6.6 V12 48VPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	5,250-5,750 rpm	2,000-4,500 rpm	6,000 rpm
Rolls-RoyceGhost I6.6 V12 48V	5,250-6,000 rpm	-	6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	Rolls-RoyceGhost I6.6 V12 48V
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.3 s	4.7 s
0-100 km/h 0-62 mph	4.5 s	4.9 s
0-200 km/h 0-124 mph	12.9 s	15.3 s
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Limited	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.3 s
330 ft 101 m	5.6 s	5.8 s
1/8 mile 201 m	8.2 s	8.5 s
1000 ft 305 m	10.5 s	10.9 s
1/4 mile 402 m	12.3 s	12.9 s
Trap speed 1/4 mile 402 m	196 km/h 122 mph	184 km/h 115 mph

Power comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	544 hp 406 kW
Rolls-RoyceGhost I6.6 V12 48V	570 hp 425 kW

Rolls-Royce Ghost I 6.6 V12 48V has 26 hp more than Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8.

The biggest power difference is between Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 and Rolls-Royce Ghost I 6.6 V12 48V: 26 hp (19 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	800 Nm 590 lb-ft
Rolls-RoyceGhost I6.6 V12 48V	780 Nm 575 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	2,045 kg 4,508 lb
Rolls-RoyceGhost I6.6 V12 48V	2,360 kg 5,203 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph
Rolls-RoyceGhost I6.6 V12 48V	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
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	4.5 s
Rolls-RoyceGhost I6.6 V12 48V	4.9 s

Although Rolls-Royce Ghost I 6.6 V12 48V has more power, Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 and Rolls-Royce Ghost I 6.6 V12 48V: 0.4 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	266 hp/t 198 kW/t 3.8 kg/hp
Rolls-RoyceGhost I6.6 V12 48V	242 hp/t 180 kW/t 4.1 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	544 hp 406 kW	4.5 s	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph
Rolls-RoyceGhost I6.6 V12 48V	570 hp 425 kW	4.9 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.

Vehicle

Performance score

Practicality score

Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8

Power	544 hp 406 kW
0-100 km/h	4.5 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	4 doors 5 seats
Trunk	560 L 19.8 cu ft
Length	5,096 mm 200.6 in
Height	1,479 mm 58.2 in

Rolls-RoyceGhost I6.6 V12 48V

Power	570 hp 425 kW
0-100 km/h	4.9 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	4 doors 5 seats
Trunk	-
Length	5,399 mm 212.6 in
Height	1,550 mm 61.0 in

Detailed score breakdown

Vehicle

Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8

Rolls-RoyceGhost I6.6 V12 48V

Power

544 hp

406 kW

570 hp

425 kW

Torque

800 Nm

590 lb-ft

780 Nm

575 lb-ft

Acceleration

4.5 s

4.9 s

Top speed

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Lightness

2,045 kg

4,508 lb

2,360 kg

5,203 lb

Fuel consumption

10.5 L/100 km

22.4 mpg US

26.9 mpg UK

Practicality

Doors/seats	4 doors 5 seats
Trunk	560 L 19.8 cu ft
Length	5,096 mm 200.6 in
Height	1,479 mm 58.2 in

Doors/seats	4 doors 5 seats
Trunk	-
Length	5,399 mm 212.6 in
Height	1,550 mm 61.0 in

Range score

857 km

533 mi

Trunk score

560 L

19.8 cu ft

Power-to-weight score

266 hp/t

198 kW/t

3.8 kg/hp

242 hp/t

180 kW/t

4.1 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8
Consumption	10.5 L/100 km22.4 mpg US26.9 mpg UK
Cost / 100 km	18.38 LC100 km
Cost / 100 mi	29.57 LC100 mi
Annual fuel used	1,575 L416 US gal346 UK gal
Annual fuel cost	2,756 LC/year