Car comparison

Mercedes-Benz S-class (W221) 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)

AMG S 63 V8

525 hp6208 ccGasolineRWDAutomaticNaturally aspiratedSedan2006-2009
VS

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.

Best choices

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
  • Lowest combined fuel consumption
    12.0 L/100 km
    19.6 mpg US
    23.5 mpg UK
  • Lowest city consumption
    17.1 L/100 km
    13.8 mpg US
    16.5 mpg UK
  • Lowest highway consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Lowest CO2 emissions
    272 g/km
  • Best estimated range
    667 km
    414 mi
  • Best performance score
    84/100
  • Best economy score
    75/100

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

  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,995 kg
    4,398 lb
  • Largest trunk
    560 L
  • Best overall score
    79/100
  • Best practicality score
    73/100

Specification comparison

Specification comparison
ModelMercedes-BenzS-class (W221)AMG S 63 V8Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Power
525hp391kW
630hp470kW
Torque
630Nm465lb-ft
1,000Nm738lb-ft
Curb weight
1,995kg4,398lb
2,180kg4,806lb
Gross weight
2,595kg5,721lb
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
41.7s99% target: 262 km/h / 163 mph
Calculated
52.7s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
4.1s
0-200 km/h
13.2s
Calculated
14.4s
Calculated
0-60 mph
4.4s
Calculated
3.9s
Calculated
Fuel consumption
14.9L/100 km15.8mpg US19.0mpg UK
12L/100 km19.6mpg US23.5mpg UK
Fuel consumption city
23.2L/100 km10.1mpg US12.2mpg UK
17.1L/100 km13.8mpg US16.5mpg UK
Fuel consumption highway
10.2L/100 km23.1mpg US27.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
Quarter mile
12.4s
Calculated
12.2s
Calculated
Power-to-weight
263hp/t196kW/t119hp/1000 lb
Calculated
289hp/t216kW/t131hp/1000 lb
Calculated
Torque-to-weight
316Nm/t211lb-ft/ton
Calculated
459Nm/t307lb-ft/ton
Calculated
Estimated range
604km375mi
Calculated
667km414mi
Calculated
Displacement
6,208cc379cu in
5,980cc365cu in
Length
5,079mm200in
5,027mm198in
Width
1,872mm74in
1,899mm75in
Height
1,473mm58in
1,417mm56in
Wheelbase
3,035mm119in
2,945mm116in
Front track
1,604mm63in
1,625mm64in
Rear track
1,606mm63in
1,649mm65in
Trunk volume-
350L
Max trunk volume
560L
-
Doors
4
2
Seats
4
4
Fuel tank
90L
80L
CO2 emissions
355g/km
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) AMG S 63 V8Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12PowerTorque
  • Mercedes-Benz S-class (W221) AMG S 63 V8: Power / Torque
  • Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzS-class (W221)AMG S 63 V86,800 rpm5,200 rpm7,050 rpm
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V124,800-5,400 rpm2,300-4,300 rpm5,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzS-class (W221)AMG S 63 V8Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
3.9 s
0-100 km/h
0-62 mph
4.6 s
4.1 s
0-200 km/h
0-124 mph
13.2 s
14.4 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely 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
5.7 s
5.3 s
1/8 mile
201 m
8.3 s
7.9 s
1000 ft
305 m
10.6 s
10.2 s
1/4 mile
402 m
12.4 s
12.2 s
Trap speed
1/4 mile
402 m
194 km/h
121 mph
187 km/h
116 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)AMG S 63 V8
525 hp
391 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 105 hp more than Mercedes-Benz S-class (W221) AMG S 63 V8.

The biggest power difference is between Mercedes-Benz S-class (W221) AMG S 63 V8 and Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12: 105 hp (78 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class (W221)AMG S 63 V8
630 Nm
465 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
VehicleValue
Mercedes-BenzS-class (W221)AMG S 63 V8
1,995 kg
4,398 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
VehicleValue
Mercedes-BenzS-class (W221)AMG 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
VehicleValue
Mercedes-BenzS-class (W221)AMG S 63 V84.6 s
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V124.1 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) AMG S 63 V8: 0.5 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)AMG S 63 V8
14.9 L/100 km
15.8 mpg US
19.0 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 Cabriolet (A217) AMG S 65 V12 and Mercedes-Benz S-class (W221) AMG S 63 V8: 2.9 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)AMG S 63 V8
263 hp/t
196 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
VehicleValue
Mercedes-BenzS-class (W221)AMG S 63 V8
604 km
375 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
VehiclePowerAccelerationTop speed
Mercedes-BenzS-class (W221)AMG S 63 V8
525 hp
391 kW
4.6 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.

Chart data table
VehiclePerformance scorePracticality score
Mercedes-BenzS-class (W221)AMG 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
4 seats
Trunk
560 L
19.8 cu ft
Length
5,079 mm
200.0 in
Height
1,473 mm
58.0 in
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Power
630 hp
470 kW
0-100 km/h4.1 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.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Mercedes-BenzS-class (W221)AMG 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
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Power
630 hp
470 kW
0-100 km/h4.1 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 Cabriolet (A217) AMG S 65 V12 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)AMG S 63 V8
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
4.6 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Mercedes-BenzS-class (W221)AMG S 63 V8
263 hp/t
196 kW/t
3.8 kg/hp
14.9 L/100 km
15.8 mpg US
19.0 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

Detailed score breakdown
VehicleMercedes-BenzS-class (W221)AMG S 63 V8Mercedes-BenzS-class Cabriolet (A217)AMG S 65 V12
Power
525 hp
391 kW
630 hp
470 kW
Torque
630 Nm
465 lb-ft
1,000 Nm
738 lb-ft
Acceleration
4.6 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
1,995 kg
4,398 lb
2,180 kg
4,806 lb
Fuel consumption
14.9 L/100 km
15.8 mpg US
19.0 mpg UK
12.0 L/100 km
19.6 mpg US
23.5 mpg UK
Practicality
Doors/seats
4 doors
4 seats
Trunk
560 L
19.8 cu ft
Length
5,079 mm
200.0 in
Height
1,473 mm
58.0 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
604 km
375 mi
667 km
414 mi
CO2 score
355 g/km
272 g/km
Trunk score
560 L
19.8 cu ft
350 L
12.4 cu ft
Power-to-weight score
263 hp/t
196 kW/t
3.8 kg/hp
289 hp/t
216 kW/t
3.5 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) AMG S 63 V8Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12
Consumption14.9 L/100 km15.8 mpg US19 mpg UK12 L/100 km19.6 mpg US23.5 mpg UK
Cost / 100 km26.08 LC100 km21.00 LC100 km
Cost / 100 mi41.96 LC100 mi33.80 LC100 mi
Annual fuel used2,235 L590 US gal492 UK gal1,800 L476 US gal396 UK gal
Annual fuel cost3,911 LC/year3,150 LC/year

Head-to-head comparisons

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

  • Is 185 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Has 210 L more trunk volume

Pros

  • Highest top speed
  • Lightest
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

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

  • Has 105 hp more
  • Has 370 Nm more
  • Is 0.5 s quicker from 0-100 km/h
  • Uses 2.9 L/100 km less fuel
  • Has 26 hp/t better power-to-weight
  • Has 63 km (39 mi) more estimated range
  • Emits 83 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz S-class (W221) AMG S 63 V8
Mercedes-Benz S-class Cabriolet (A217) AMG S 65 V12
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