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 ccGasolineRWDManualTurbochargedCoupe2016-2018
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
    4.6 s
  • Fastest top speed
    285 km/h
    177 mph
  • Lightest
    1,355 kg
    2,987 lb
  • Best power-to-weight
    258 hp/t
    193 kW/t
    3.9 kg/hp
  • Lowest city consumption
    10.7 L/100 km
    22.0 mpg US
    26.4 mpg UK
  • Largest trunk
    334 L
  • Best overall score
    63/100
  • Best performance score
    74/100
  • Best practicality score
    39/100

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

  • Most powerful
    367 hp
    274 kW
  • Highest torque
    520 Nm
    384 lb-ft
  • Lowest combined fuel consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest highway consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest CO2 emissions
    178 g/km
  • Best estimated range
    897 km
    558 mi
  • Best economy score
    86/100

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
1,355kg2,987lb
1,520kg3,351lb
Gross weight
1,665kg3,671lb
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
71.7s99% target: 282 km/h / 175 mph
Calculated
64.6s99% target: 262 km/h / 163 mph
Calculated
0-100 km/h
4.6s
4.7s
0-200 km/h
15.2s
16.5s
Calculated
0-60 mph
4.4s
Calculated
4.5s
Calculated
Fuel consumption
8.1L/100 km29mpg US34.9mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
10.7L/100 km22mpg US26.4mpg UK
10.7L/100 km22mpg US26.4mpg UK
Fuel consumption highway
6.5L/100 km36.2mpg US43.5mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
12.7s
Calculated
12.8s
Calculated
Power-to-weight
258hp/t193kW/t117hp/1000 lb
Calculated
241hp/t180kW/t110hp/1000 lb
Calculated
Torque-to-weight
310Nm/t207lb-ft/ton
Calculated
342Nm/t229lb-ft/ton
Calculated
Estimated range
790km491mi
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
184g/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
4.4 s
4.5 s
0-100 km/h
0-62 mph
4.6 s
4.7 s
0-200 km/h
0-124 mph
15.2 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
2.1 s
2.1 s
330 ft
101 m
5.5 s
5.6 s
1/8 mile
201 m
8.3 s
8.4 s
1000 ft
305 m
10.7 s
10.8 s
1/4 mile
402 m
12.7 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
1,355 kg
2,987 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 2.54.6 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: 0.1 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
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
Mercedes-BenzSLC (R172)Facelift 2016AMG SLC 43 V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

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
258 hp/t
193 kW/t
3.9 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
790 km
491 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
4.6 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/h4.6 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/h4.6 s
Top speed
285 km/h
177 mph
8.1 L/100 km
29.0 mpg US
34.9 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

Mercedes-Benz SLC (R172) Facelift 2016 AMG SLC 43 V6 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
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
4.6 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
258 hp/t
193 kW/t
3.9 kg/hp
8.1 L/100 km
29.0 mpg US
34.9 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
4.6 s
4.7 s
Top speed
285 km/h
177 mph
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Lightness
1,355 kg
2,987 lb
1,520 kg
3,351 lb
Fuel consumption
8.1 L/100 km
29.0 mpg US
34.9 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
790 km
491 mi
897 km
558 mi
CO2 score
184 g/km
178 g/km
Trunk score
334 L
11.8 cu ft
225 L
7.9 cu ft
Power-to-weight score
258 hp/t
193 kW/t
3.9 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
Consumption8.1 L/100 km29 mpg US34.9 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km14.17 LC100 km13.65 LC100 km
Cost / 100 mi22.81 LC100 mi21.97 LC100 mi
Annual fuel used1,215 L321 US gal267 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost2,126 LC/year2,048 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) S 2.5

  • Is 165 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Has 17 hp/t better power-to-weight
  • Has 109 L more trunk volume

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Highest CO2 emissions

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

  • Has 17 hp more
  • Has 100 Nm more
  • Uses 0.3 L/100 km less fuel
  • Has 107 km (67 mi) more estimated range
  • Emits 6 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed
  • Smallest trunk

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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