Car comparison

Mercedes-Benz S-class (W221) · Facelift 2009 AMG S 63 V8vsMercedes-Benz S-class Cabriolet (A217) AMG S 65 V12

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

Mercedes-Benz S-class Cabriolet (A217)

AMG S 65 V12

630 hp5980 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2015-2017

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

Fastest top speed
265 km/h
165 mph Unrestricted
250 km/h
155 mph Restricted
Lightest
2,045 kg
4,508 lb
Lowest combined fuel consumption
10.5 L/100 km
22.4 mpg US
26.9 mpg UK
Lowest city consumption
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
Lowest highway consumption
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Best estimated range
857 km
533 mi
Largest trunk
560 L
Best overall score
83/100
Best performance score
85/100
Best economy score
79/100
Best practicality score
78/100

Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12

Quickest 0-100 km/h
4.1 s
Most powerful
630 hp
470 kW
Highest torque
1,000 Nm
738 lb-ft
Best power-to-weight
289 hp/t
216 kW/t
3.5 kg/hp

Specification comparison

Specification comparison
Model	Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Power	544hp406kW	630hp470kW
Torque	800Nm590lb-ft	1,000Nm738lb-ft
Curb weight	2,045kg4,508lb	2,180kg4,806lb
Gross weight	2,670kg5,886lb	2,625kg5,787lb
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	40.8s99% target: 262 km/h / 163 mph Calculated	52.7s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	4.5s	4.1s
0-200 km/h	12.9s Calculated	14.4s Calculated
0-60 mph	4.3s Calculated	3.9s Calculated
Fuel consumption	10.5L/100 km22.4mpg US26.9mpg UK	12L/100 km19.6mpg US23.5mpg UK
Fuel consumption city	14.4L/100 km16.3mpg US19.6mpg UK	17.1L/100 km13.8mpg US16.5mpg UK
Fuel consumption highway	8.2L/100 km28.7mpg US34.4mpg UK	8.9L/100 km26.4mpg US31.7mpg UK
Quarter mile	12.3s Calculated	12.2s Calculated
Power-to-weight	266hp/t198kW/t121hp/1000 lb Calculated	289hp/t216kW/t131hp/1000 lb Calculated
Torque-to-weight	391Nm/t262lb-ft/ton Calculated	459Nm/t307lb-ft/ton Calculated
Estimated range	857km533mi Calculated	667km414mi Calculated
Displacement	5,461cc333cu in	5,980cc365cu in
Length	5,096mm201in	5,027mm198in
Width	1,871mm74in	1,899mm75in
Height	1,479mm58in	1,417mm56in
Wheelbase	3,035mm119in	2,945mm116in
Front track	1,600mm63in	1,625mm64in
Rear track	1,606mm63in	1,649mm65in
Trunk volume	560L	350L
Doors	4	2
Seats	5	4
Fuel tank	90L	80L
CO2 emissions	-	272g/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.

Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12PowerTorque

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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	4,800-5,400 rpm	2,300-4,300 rpm	5,650 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	Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.3 s	3.9 s
0-100 km/h 0-62 mph	4.5 s	4.1 s
0-200 km/h 0-124 mph	12.9 s	14.4 s
Top speed	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Limited	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.0 s
330 ft 101 m	5.6 s	5.3 s
1/8 mile 201 m	8.2 s	7.9 s
1000 ft 305 m	10.5 s	10.2 s
1/4 mile 402 m	12.3 s	12.2 s
Trap speed 1/4 mile 402 m	196 km/h 122 mph	187 km/h 116 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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	630 hp 470 kW

Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12 has 86 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 Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12: 86 hp (64 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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	1,000 Nm 738 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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	2,180 kg 4,806 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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 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
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	4.5 s
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	4.1 s

The biggest 0-100 km/h difference is between Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12 and Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8: 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
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	10.5 L/100 km 22.4 mpg US 26.9 mpg UK
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	12.0 L/100 km 19.6 mpg US 23.5 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 and Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12: 1.5 L/100 km.

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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	289 hp/t 216 kW/t 3.5 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	857 km 533 mi
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	667 km 414 mi

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
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	630 hp 470 kW	4.1 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.

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

Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12

Power	630 hp 470 kW
0-100 km/h	4.1 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	350 L 12.4 cu ft
Length	5,027 mm 197.9 in
Height	1,417 mm 55.8 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy 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

10.5 L/100 km

22.4 mpg US

26.9 mpg UK

Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12

Power	630 hp 470 kW
0-100 km/h	4.1 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

12.0 L/100 km

19.6 mpg US

23.5 mpg UK

Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	10.5 L/100 km 22.4 mpg US 26.9 mpg UK	4.5 s
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	12.0 L/100 km 19.6 mpg US 23.5 mpg UK	4.1 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8	266 hp/t 198 kW/t 3.8 kg/hp	10.5 L/100 km 22.4 mpg US 26.9 mpg UK
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12	289 hp/t 216 kW/t 3.5 kg/hp	12.0 L/100 km 19.6 mpg US 23.5 mpg UK

Detailed score breakdown

Vehicle

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

Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12

Power

544 hp

406 kW

630 hp

470 kW

Torque

800 Nm

590 lb-ft

1,000 Nm

738 lb-ft

Acceleration

4.5 s

4.1 s

Top speed

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

2,045 kg

4,508 lb

2,180 kg

4,806 lb

Fuel consumption

10.5 L/100 km

22.4 mpg US

26.9 mpg UK

12.0 L/100 km

19.6 mpg US

23.5 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	2 doors 4 seats
Trunk	350 L 12.4 cu ft
Length	5,027 mm 197.9 in
Height	1,417 mm 55.8 in

Range score

857 km

533 mi

667 km

414 mi

CO2 score

272 g/km

Trunk score

560 L

19.8 cu ft

350 L

12.4 cu ft

Power-to-weight score

266 hp/t

198 kW/t

3.8 kg/hp

289 hp/t

216 kW/t

3.5 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	Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12
Consumption	10.5 L/100 km22.4 mpg US26.9 mpg UK	12 L/100 km19.6 mpg US23.5 mpg UK
Cost / 100 km	18.38 LC100 km	21.00 LC100 km
Cost / 100 mi	29.57 LC100 mi	33.80 LC100 mi
Annual fuel used	1,575 L416 US gal346 UK gal	1,800 L476 US gal396 UK gal
Annual fuel cost	2,756 LC/year	3,150 LC/year