Car comparison

Mercedes-Benz S-class Coupe (C217) S 400vsMercedes-Benz S-class Cabriolet (A217) S 500 V8

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

New comparison

Mercedes-Benz S-class Coupe (C217)

S 400

367 hp2996 ccGasolineAWDAutomaticTwin-turboCoupe2015-2017
VS

Mercedes-Benz S-class Cabriolet (A217)

S 500 V8

456 hp4663 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 Coupe (C217) S 400

  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Lightest
    1,960 kg
    4,321 lb
  • Lowest combined fuel consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Lowest city consumption
    11.7 L/100 km
    20.1 mpg US
    24.1 mpg UK
  • Lowest highway consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Lowest CO2 emissions
    208 g/km
  • Best estimated range
    899 km
    559 mi
  • Largest trunk
    400 L
  • Best economy score
    83/100
  • Best practicality score
    52/100

Specification comparison

Specification comparison
ModelMercedes-BenzS-class Coupe (C217)S 400Mercedes-BenzS-class Cabriolet (A217)S 500 V8
Power
367hp274kW
456hp340kW
Torque
500Nm369lb-ft
700Nm516lb-ft
Curb weight
1,960kg4,321lb
2,040kg4,497lb
Gross weight
2,540kg5,600lb
2,590kg5,710lb
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
79.9s99% target: 262 km/h / 163 mph
Calculated
64.9s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.6s
4.6s
0-200 km/h
20.0s
Calculated
16.9s
Calculated
0-60 mph
5.3s
Calculated
4.4s
Calculated
Fuel consumption
8.9L/100 km26.4mpg US31.7mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
11.7L/100 km20.1mpg US24.1mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Fuel consumption highway
7.2L/100 km32.7mpg US39.2mpg UK
7.5L/100 km31.4mpg US37.7mpg UK
Quarter mile
13.7s
Calculated
12.8s
Calculated
Power-to-weight
187hp/t140kW/t85hp/1000 lb
Calculated
224hp/t167kW/t101hp/1000 lb
Calculated
Torque-to-weight
255Nm/t171lb-ft/ton
Calculated
343Nm/t230lb-ft/ton
Calculated
Estimated range
899km559mi
Calculated
879km546mi
Calculated
Displacement
2,996cc183cu in
4,663cc285cu in
Length
5,027mm198in
5,027mm198in
Width
1,899mm75in
1,899mm75in
Height
1,411mm56in
1,417mm56in
Wheelbase
2,945mm116in
2,945mm116in
Front track
1,625mm64in
1,625mm64in
Rear track
1,649mm65in
1,649mm65in
Trunk volume
400L
350L
Doors
2
2
Seats
4
4
Fuel tank
80L
80L
CO2 emissions
208g/km
212g/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 Coupe (C217) S 400Mercedes-Benz S-class Cabriolet (A217) S 500 V8PowerTorque
  • Mercedes-Benz S-class Coupe (C217) S 400: Power / Torque
  • Mercedes-Benz S-class Cabriolet (A217) S 500 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzS-class Coupe (C217)S 4005,500-6,000 rpm1,800-4,500 rpm6,250 rpm
Mercedes-BenzS-class Cabriolet (A217)S 500 V85,250-5,500 rpm1,800-3,500 rpm5,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzS-class Coupe (C217)S 400Mercedes-BenzS-class Cabriolet (A217)S 500 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
5.3 s
4.4 s
0-100 km/h
0-62 mph
5.6 s
4.6 s
0-200 km/h
0-124 mph
20.0 s
16.9 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
2.1 s
330 ft
101 m
6.0 s
5.5 s
1/8 mile
201 m
9.0 s
8.3 s
1000 ft
305 m
11.6 s
10.7 s
1/4 mile
402 m
13.7 s
12.8 s
Trap speed
1/4 mile
402 m
169 km/h
105 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class Coupe (C217)S 400
367 hp
274 kW
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
456 hp
340 kW

Mercedes-Benz S-class Cabriolet (A217) S 500 V8 has 89 hp more than Mercedes-Benz S-class Coupe (C217) S 400.

The biggest power difference is between Mercedes-Benz S-class Coupe (C217) S 400 and Mercedes-Benz S-class Cabriolet (A217) S 500 V8: 89 hp (66 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class Coupe (C217)S 400
500 Nm
369 lb-ft
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
700 Nm
516 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class Coupe (C217)S 400
1,960 kg
4,321 lb
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
2,040 kg
4,497 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 Coupe (C217)S 400
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
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 Coupe (C217)S 4005.6 s
Mercedes-BenzS-class Cabriolet (A217)S 500 V84.6 s

The biggest 0-100 km/h difference is between Mercedes-Benz S-class Cabriolet (A217) S 500 V8 and Mercedes-Benz S-class Coupe (C217) S 400: 1.0 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 Coupe (C217)S 400
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

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 Coupe (C217)S 400
187 hp/t
140 kW/t
5.3 kg/hp
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
224 hp/t
167 kW/t
4.5 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzS-class Coupe (C217)S 400
899 km
559 mi
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
879 km
546 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzS-class Coupe (C217)S 400
367 hp
274 kW
5.6 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
456 hp
340 kW
4.6 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 Coupe (C217)S 400
Power
367 hp
274 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
400 L
14.1 cu ft
Length
5,027 mm
197.9 in
Height
1,411 mm
55.6 in
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
Power
456 hp
340 kW
0-100 km/h4.6 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 Coupe (C217)S 400
Power
367 hp
274 kW
0-100 km/h5.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
Power
456 hp
340 kW
0-100 km/h4.6 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Mercedes-Benz S-class Cabriolet (A217) S 500 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 Coupe (C217)S 400
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
5.6 s
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
4.6 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 Coupe (C217)S 400
187 hp/t
140 kW/t
5.3 kg/hp
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
Mercedes-BenzS-class Cabriolet (A217)S 500 V8
224 hp/t
167 kW/t
4.5 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzS-class Coupe (C217)S 400Mercedes-BenzS-class Cabriolet (A217)S 500 V8
Power
367 hp
274 kW
456 hp
340 kW
Torque
500 Nm
369 lb-ft
700 Nm
516 lb-ft
Acceleration
5.6 s
4.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,960 kg
4,321 lb
2,040 kg
4,497 lb
Fuel consumption
8.9 L/100 km
26.4 mpg US
31.7 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
400 L
14.1 cu ft
Length
5,027 mm
197.9 in
Height
1,411 mm
55.6 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
899 km
559 mi
879 km
546 mi
CO2 score
208 g/km
212 g/km
Trunk score
400 L
14.1 cu ft
350 L
12.4 cu ft
Power-to-weight score
187 hp/t
140 kW/t
5.3 kg/hp
224 hp/t
167 kW/t
4.5 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 Coupe (C217) S 400Mercedes-Benz S-class Cabriolet (A217) S 500 V8
Consumption8.9 L/100 km26.4 mpg US31.7 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km15.58 LC100 km15.92 LC100 km
Cost / 100 mi25.07 LC100 mi25.63 LC100 mi
Annual fuel used1,335 L353 US gal294 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost2,336 LC/year2,389 LC/year

Head-to-head comparisons

Mercedes-Benz S-class Coupe (C217) S 400

  • Is 80 kg lighter
  • Has 5 km/h (3 mph) higher top speed
  • Uses 0.2 L/100 km less fuel
  • Has 20 km (12 mi) more estimated range
  • Has 50 L more trunk volume
  • Emits 4 g/km less CO2

Pros

  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Mercedes-Benz S-class Cabriolet (A217) S 500 V8

  • Has 89 hp more
  • Has 200 Nm more
  • Is 1.0 s quicker from 0-100 km/h
  • Has 36 hp/t better power-to-weight

Pros

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

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

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Mercedes-Benz S-class Coupe (C217) S 400
Mercedes-Benz S-class Cabriolet (A217) S 500 V8
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