Car comparison

Porsche 718 Cayman (982) S 2.5vsMercedes-Benz SLC (R172) · Facelift 2016 AMG SLC 43 V6

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

New comparison

Porsche 718 Cayman (982)

S 2.5

350 hp2497 ccGasolineRWDDual-clutchTurbochargedCoupe2016-2018
VS

Mercedes-Benz SLC (R172) · Facelift 2016

AMG SLC 43 V6

367 hp2996 ccGasolineRWDAutomaticTwin-turboCoupe2016-2018

Comparison overview

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

Best choices

Porsche 718 Cayman (982) S 2.5

  • Quickest 0-100 km/h
    4.4 s
  • Fastest top speed
    285 km/h
    177 mph
  • Lightest
    1,385 kg
    3,053 lb
  • Best power-to-weight
    253 hp/t
    188 kW/t
    4.0 kg/hp
  • Lowest combined fuel consumption
    7.3 L/100 km
    32.2 mpg US
    38.7 mpg UK
  • Lowest city consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest highway consumption
    6.0 L/100 km
    39.2 mpg US
    47.1 mpg UK
  • Lowest CO2 emissions
    167 g/km
  • Largest trunk
    334 L
  • Best overall score
    63/100
  • Best performance score
    75/100
  • Best economy score
    87/100
  • Best practicality score
    39/100

Specification comparison

Specification comparison
ModelPorsche718 Cayman (982)S 2.5Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
Power
350hp261kW
367hp274kW
Torque
420Nm310lb-ft
520Nm384lb-ft
Curb weight
1,385kg3,053lb
1,520kg3,351lb
Gross weight
1,695kg3,737lb
1,890kg4,167lb
Top speed
285 km/h
177 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
73.7s99% target: 282 km/h / 175 mph
Calculated
64.6s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.4s
4.7s
0-200 km/h
15.0s
16.5s
Calculated
0-60 mph
4.2s
Calculated
4.5s
Calculated
Fuel consumption
7.3L/100 km32.2mpg US38.7mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
9.5L/100 km24.8mpg US29.7mpg UK
10.7L/100 km22mpg US26.4mpg UK
Fuel consumption highway
6L/100 km39.2mpg US47.1mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
12.5s
Calculated
12.8s
Calculated
Power-to-weight
253hp/t188kW/t115hp/1000 lb
Calculated
241hp/t180kW/t110hp/1000 lb
Calculated
Torque-to-weight
303Nm/t203lb-ft/ton
Calculated
342Nm/t229lb-ft/ton
Calculated
Estimated range
877km545mi
Calculated
897km558mi
Calculated
Displacement
2,497cc152cu in
2,996cc183cu in
Length
4,379mm172in
-
Width
1,801mm71in
-
Height
1,284mm51in
-
Wheelbase
2,475mm97in
-
Front track
1,515mm60in
-
Rear track
1,540mm61in
-
Trunk volume
334L
225L
Max trunk volume-
335L
Doors
2
2
Seats
2
2
Fuel tank
64L
70L
CO2 emissions
167g/km
178g/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.

Porsche 718 Cayman (982) S 2.5Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6PowerTorque
  • Porsche 718 Cayman (982) S 2.5: Power / Torque
  • Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Cayman (982)S 2.56,500 rpm1,900-4,500 rpm7,500 rpm
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V65,500-6,000 rpm2,000-4,200 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Cayman (982)S 2.5Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
4.5 s
0-100 km/h
0-62 mph
4.4 s
4.7 s
0-200 km/h
0-124 mph
15.0 s
16.5 s
Top speed
285 km/h
177 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.0 s
2.1 s
330 ft
101 m
5.4 s
5.6 s
1/8 mile
201 m
8.1 s
8.4 s
1000 ft
305 m
10.5 s
10.8 s
1/4 mile
402 m
12.5 s
12.8 s
Trap speed
1/4 mile
402 m
184 km/h
114 mph
180 km/h
112 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
350 hp
261 kW
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
367 hp
274 kW

Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6 has 17 hp more than Porsche 718 Cayman (982) S 2.5.

The biggest power difference is between Porsche 718 Cayman (982) S 2.5 and Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6: 17 hp (13 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
420 Nm
310 lb-ft
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
520 Nm
384 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
1,385 kg
3,053 lb
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
1,520 kg
3,351 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
285 km/h
177 mph
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
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
Porsche718 Cayman (982)S 2.54.4 s
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V64.7 s

Although Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6 has more power, Porsche 718 Cayman (982) S 2.5 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 718 Cayman (982) S 2.5 and Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6: 0.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

The biggest fuel consumption difference is between Porsche 718 Cayman (982) S 2.5 and Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6: 0.5 L/100 km.

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
253 hp/t
188 kW/t
4.0 kg/hp
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
241 hp/t
180 kW/t
4.1 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)S 2.5
877 km
545 mi
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
897 km
558 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Cayman (982)S 2.5
350 hp
261 kW
4.4 s
285 km/h
177 mph
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
367 hp
274 kW
4.7 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
Porsche718 Cayman (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
285 km/h
177 mph
Doors/seats
2 doors
2 seats
Trunk
334 L
11.8 cu ft
Length
4,379 mm
172.4 in
Height
1,284 mm
50.6 in
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
Power
367 hp
274 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length-
Height-

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
Porsche718 Cayman (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.4 s
Top speed
285 km/h
177 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
Power
367 hp
274 kW
0-100 km/h4.7 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Porsche 718 Cayman (982) S 2.5 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
Porsche718 Cayman (982)S 2.5
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
4.4 s
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
4.7 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
Porsche718 Cayman (982)S 2.5
253 hp/t
188 kW/t
4.0 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
241 hp/t
180 kW/t
4.1 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Cayman (982)S 2.5Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
Power
350 hp
261 kW
367 hp
274 kW
Torque
420 Nm
310 lb-ft
520 Nm
384 lb-ft
Acceleration
4.4 s
4.7 s
Top speed
285 km/h
177 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,385 kg
3,053 lb
1,520 kg
3,351 lb
Fuel consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
334 L
11.8 cu ft
Length
4,379 mm
172.4 in
Height
1,284 mm
50.6 in
Doors/seats
2 doors
2 seats
Trunk
225 L
7.9 cu ft
Length-
Height-
Range score
877 km
545 mi
897 km
558 mi
CO2 score
167 g/km
178 g/km
Trunk score
334 L
11.8 cu ft
225 L
7.9 cu ft
Power-to-weight score
253 hp/t
188 kW/t
4.0 kg/hp
241 hp/t
180 kW/t
4.1 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
VehiclePorsche 718 Cayman (982) S 2.5Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6
Consumption7.3 L/100 km32.2 mpg US38.7 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km12.78 LC100 km13.65 LC100 km
Cost / 100 mi20.56 LC100 mi21.97 LC100 mi
Annual fuel used1,095 L289 US gal241 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost1,916 LC/year2,048 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) S 2.5

  • Is 135 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Uses 0.5 L/100 km less fuel
  • Has 11 hp/t better power-to-weight
  • Has 109 L more trunk volume
  • Emits 11 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Lowest power

Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6

  • Has 17 hp more
  • Has 100 Nm more
  • Has 21 km (13 mi) more estimated range

Pros

  • Most powerful
  • Highest torque
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Cayman (982) S 2.5
Mercedes-Benz SLC (R172) AMG SLC 43 V6
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2 vehicles selected

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