The Comparative Analysis :
Mercedes CLS Coupé 450 4MATIC 9G-TRONIC (19 - ..) vs. Porsche Cayman S Black Edition PDK (11 - 12)
€ 70,900

€ 70,800

€ 70,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 70,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 450 is significantly bigger in every dimension. It's 25.2 inches longer, 3.5 inches wider and 5.1 inches taller than the Porsche Cayman S.
Mercedes CLS Coupé 450
Porsche Cayman S
56.5
74.4
81.5
51.4
70.9
77.9
74.4 in
Width
70.9 in
81.5 in
Width Incl. Mirrors
77.9 in
56.5 in
Height
51.4 in
115.7
196.4
95.1
171.1
196.4 in
Length
171.1 in
115.7 in
Wheelbase
95.1 in
Vehicle Weight
Mercedes CLS Coupé 450
Porsche Cayman S
4277 lb
Curb Weight
3197 lb
5644 lb
Gross Vehicle
Weight
Weight
3693 lb

Weight Difference:
1080 lb
25.25 %

General
Mercedes CLS Coupé 450
Porsche Cayman S
C257
Generation
987C
Coupe
Car Body Style
Coupe
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive

9-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
Mercedes CLS Coupé 450
Porsche Cayman S
6-cylinder mild hybrid gasoline engine with turbocharger and electric driven compressor
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz M 256
Engine Series
M 256.930
Engine Code

4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.4 L / 166 cu in
383 hp
at 5500 rpm
Power
325 hp
at 7400 rpm
Mercedes CLS Coupé 450
383 hp
325 hp
Porsche Cayman S
369 lb‑ft
at 1600 rpm
Max. Torque
273 lb‑ft
at 4750 rpm
Mercedes CLS Coupé 450
369 lb‑ft
273 lb‑ft
Porsche Cayman S
Performance
Mercedes CLS Coupé 450
Porsche Cayman S
155 mph
Maximum Speed
172 mph
4.8 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
220 ft
0.000 sec

Mercedes CLS Coupé 450
62 mph
62
mph
mph
226 ft
0.000 sec

Porsche Cayman S
▶ REPLAY
11.17 lb/hp
Weight-to-Power Ratio
9.84 lb/hp
Mercedes CLS Coupé 450
11.17 lb/hp
9.84 lb/hp
Porsche Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 450
Porsche Cayman S
Fuel Economy
30 mpg
combined
25 mpg
Mercedes CLS Coupé 450
30 mpg
25 mpg
Porsche Cayman S
23 mpg
city
17 mpg
38 mpg
highway
36 mpg
17.4 gal
Fuel Tank Capacity
17.2 gal
526 mi
Range
429 mi
Mercedes CLS Coupé 450
526 mi
429 mi
Porsche Cayman S
Environmental Impact
147.7 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
178.2 kWh
Mercedes CLS Coupé 450
147.7 kWh
178.2 kWh
Porsche Cayman S
Euro 6d-TEMP-EVAP-ISC (WLTP) 36CH, 36CI, 36DG
Emission Standard
Euro 5
304 g/mi (WLTP)
CO2 Emissions
356 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 450
Porsche Cayman S
4
Doors
2
5
No. of Seats
2
1367 lb
Maximum Payload
496 lb
14.7 cu ft
Trunk Volume
11.6 cu ft









No data
Cargo Volume (Seats Down)
No data