Car comparison

Mercedes-Benz S-class (W221) · Facelift 2009 AMG S 63 V8vsMercedes-Benz S-class (W220) AMG S 55

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

525 hp6208 ccGasolineRWDAutomaticNaturally aspiratedSedan2009-2010
VS

Mercedes-Benz S-class (W220)

AMG S 55

360 hp5439 ccGasolineRWDAutomaticNaturally aspiratedSedan1999-2002

Comparison overview

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

Best choices

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

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    525 hp
    391 kW
  • Highest torque
    630 Nm
    465 lb-ft
  • Best power-to-weight
    263 hp/t
    196 kW/t
    3.8 kg/hp
  • Largest trunk
    560 L
  • Best overall score
    81/100
  • Best performance score
    82/100
  • Best practicality score
    78/100

Specification comparison

Specification comparison
ModelMercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8Mercedes-BenzS-class (W220)AMG S 55
Power
525hp391kW
360hp268kW
Torque
630Nm465lb-ft
530Nm391lb-ft
Curb weight
1,995kg4,398lb
1,810kg3,990lb
Gross weight
2,610kg5,754lb
2,380kg5,247lb
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
41.7s99% target: 262 km/h / 163 mph
Calculated
59.1s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.6s
6.0s
0-200 km/h
13.2s
Calculated
17.9s
Calculated
0-60 mph
4.4s
Calculated
5.7s
Calculated
Fuel consumption
14.4L/100 km16.3mpg US19.6mpg UK
13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption city
22.2L/100 km10.6mpg US12.7mpg UK
-
Fuel consumption highway
9.9L/100 km23.8mpg US28.5mpg UK
-
Quarter mile
12.4s
Calculated
13.9s
Calculated
Power-to-weight
263hp/t196kW/t119hp/1000 lb
Calculated
199hp/t148kW/t90hp/1000 lb
Calculated
Torque-to-weight
316Nm/t211lb-ft/ton
Calculated
293Nm/t196lb-ft/ton
Calculated
Estimated range
625km388mi
Calculated
662km411mi
Calculated
Displacement
6,208cc379cu in
5,439cc332cu in
Length
5,096mm201in
5,038mm198in
Width
1,871mm74in
1,855mm73in
Height
1,479mm58in
1,444mm57in
Wheelbase
3,035mm119in
2,965mm117in
Front track
1,600mm63in
1,574mm62in
Rear track
1,606mm63in
1,570mm62in
Trunk volume
560L
500L
Doors
4
4
Seats
5
5
Fuel tank
90L
88L

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 (W220) AMG S 55PowerTorque
  • Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8: Power / Torque
  • Mercedes-Benz S-class (W220) AMG S 55: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V86,800 rpm5,200 rpm7,050 rpm
Mercedes-BenzS-class (W220)AMG S 555,500 rpm3,150 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8Mercedes-BenzS-class (W220)AMG S 55
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
5.7 s
0-100 km/h
0-62 mph
4.6 s
6.0 s
0-200 km/h
0-124 mph
13.2 s
17.9 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
2.6 s
330 ft
101 m
5.7 s
6.4 s
1/8 mile
201 m
8.3 s
9.3 s
1000 ft
305 m
10.6 s
11.8 s
1/4 mile
402 m
12.4 s
13.9 s
Trap speed
1/4 mile
402 m
194 km/h
121 mph
176 km/h
109 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
525 hp
391 kW
Mercedes-BenzS-class (W220)AMG S 55
360 hp
268 kW

Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 has 165 hp more than Mercedes-Benz S-class (W220) AMG S 55.

The biggest power difference is between Mercedes-Benz S-class (W220) AMG S 55 and Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8: 165 hp (123 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
630 Nm
465 lb-ft
Mercedes-BenzS-class (W220)AMG S 55
530 Nm
391 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
1,995 kg
4,398 lb
Mercedes-BenzS-class (W220)AMG S 55
1,810 kg
3,990 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class (W220)AMG S 55
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
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V84.6 s
Mercedes-BenzS-class (W220)AMG S 556.0 s

The biggest 0-100 km/h difference is between Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8 and Mercedes-Benz S-class (W220) AMG S 55: 1.4 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
Mercedes-BenzS-class (W220)AMG S 55
13.3 L/100 km
17.7 mpg US
21.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz S-class (W220) AMG S 55 and Mercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8: 1.1 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
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
263 hp/t
196 kW/t
3.8 kg/hp
Mercedes-BenzS-class (W220)AMG S 55
199 hp/t
148 kW/t
5.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
625 km
388 mi
Mercedes-BenzS-class (W220)AMG S 55
662 km
411 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
525 hp
391 kW
4.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class (W220)AMG S 55
360 hp
268 kW
6.0 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
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
Power
525 hp
391 kW
0-100 km/h4.6 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 (W220)AMG S 55
Power
360 hp
268 kW
0-100 km/h6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
4 doors
5 seats
Trunk
500 L
17.7 cu ft
Length
5,038 mm
198.3 in
Height
1,444 mm
56.9 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
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
Power
525 hp
391 kW
0-100 km/h4.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
Mercedes-BenzS-class (W220)AMG S 55
Power
360 hp
268 kW
0-100 km/h6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
13.3 L/100 km
17.7 mpg US
21.2 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
VehicleFuel consumption, L/100 km0-100 km/h, s
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
4.6 s
Mercedes-BenzS-class (W220)AMG S 55
13.3 L/100 km
17.7 mpg US
21.2 mpg UK
6.0 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
Mercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8
263 hp/t
196 kW/t
3.8 kg/hp
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
Mercedes-BenzS-class (W220)AMG S 55
199 hp/t
148 kW/t
5.0 kg/hp
13.3 L/100 km
17.7 mpg US
21.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzS-class (W221)Facelift 2009AMG S 63 V8Mercedes-BenzS-class (W220)AMG S 55
Power
525 hp
391 kW
360 hp
268 kW
Torque
630 Nm
465 lb-ft
530 Nm
391 lb-ft
Acceleration
4.6 s
6.0 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,995 kg
4,398 lb
1,810 kg
3,990 lb
Fuel consumption
14.4 L/100 km
16.3 mpg US
19.6 mpg UK
13.3 L/100 km
17.7 mpg US
21.2 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
500 L
17.7 cu ft
Length
5,038 mm
198.3 in
Height
1,444 mm
56.9 in
Range score
625 km
388 mi
662 km
411 mi
Trunk score
560 L
19.8 cu ft
500 L
17.7 cu ft
Power-to-weight score
263 hp/t
196 kW/t
3.8 kg/hp
199 hp/t
148 kW/t
5.0 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
VehicleMercedes-Benz S-class (W221) Facelift 2009 AMG S 63 V8Mercedes-Benz S-class (W220) AMG S 55
Consumption14.4 L/100 km16.3 mpg US19.6 mpg UK13.3 L/100 km17.7 mpg US21.2 mpg UK
Cost / 100 km25.20 LC100 km23.28 LC100 km
Cost / 100 mi40.56 LC100 mi37.46 LC100 mi
Annual fuel used2,160 L571 US gal475 UK gal1,995 L527 US gal439 UK gal
Annual fuel cost3,780 LC/year3,491 LC/year

Head-to-head comparisons

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

  • Has 165 hp more
  • Has 100 Nm more
  • Is 1.4 s quicker from 0-100 km/h
  • Has 64 hp/t better power-to-weight
  • Has 60 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Heaviest

Mercedes-Benz S-class (W220) AMG S 55

  • Is 185 kg lighter
  • Uses 1.1 L/100 km less fuel
  • Has 37 km (23 mi) more estimated range

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Smallest trunk

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Mercedes-Benz S-class (W221) AMG S 63 V8
Mercedes-Benz S-class (W220) AMG S 55
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