The Comparative Analysis :
Mercedes CLS Coupé 350 BlueTEC 4MATIC 7G-TRONIC PLUS (14 - 15) vs. Porsche Cayman S Tiptronic (05 - 09)
€ 64,600

€ 62,900

€ 64,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 62,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 350 BlueTEC is significantly bigger in every dimension. It's 59.6 cm longer, 8 cm wider and 11.3 cm taller than the Porsche Cayman S.
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
1418
1881
2075
1305
1801
1978
1881 mm
Width
1801 mm
2075 mm
Width Incl. Mirrors
1978 mm
1418 mm
Height
1305 mm
2874
4937
2415
4341
4937 mm
Length
4341 mm
2874 mm
Wheelbase
2415 mm
Vehicle Weight
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
1915 kg
Kerb Weight
1455 kg
2400 kg
Gross Vehicle
Weight
Weight
1670 kg

Weight Difference:
460 kg
24.02 %

General
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
C218
Generation
987C
Coupe
Car Body Style
Coupe
Diesel
Fuel Type
Super Unleaded (98 RON)

Permanent all-wheel drive
Drive
Rear-wheel drive

7-speed automatic transmission
Transmission
5-speed automatic transmission
Engine
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
V6 diesel engine with turbocharger
Engine Type
6-cylinder boxer petrol engine (naturally aspirated engine)
Mercedes-Benz OM 642
Engine Series
OM 642.858
Engine Code

4
Valves
4
6
Cylinders
6
2987 CC
Engine Capacity
3387 CC
249 bhp
at 3600 rpm
Power
291 bhp
at 6250 rpm
Mercedes CLS Coupé 350 BlueTEC
249 bhp
291 bhp
Porsche Cayman S
620 NM
at 1600 rpm
Max. Torque
340 NM
at 4400 rpm
Mercedes CLS Coupé 350 BlueTEC
620 NM
340 NM
Porsche Cayman S
Performance
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
152 mph
Maximum Speed
166 mph
6.7 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
93 m
0.000 sec

Mercedes CLS Coupé 350 BlueTEC
62 mph
62
mph
mph
85 m
0.000 sec

Porsche Cayman S
▶ REPLAY
7.69 kg/bhp
Weight-to-Power Ratio
5 kg/bhp
Mercedes CLS Coupé 350 BlueTEC
7.69 kg/bhp
5 kg/bhp
Porsche Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
Fuel Economy
46 mpg
combined
26 mpg
Mercedes CLS Coupé 350 BlueTEC
46 mpg
26 mpg
Porsche Cayman S
39 mpg
city
17 mpg
53 mpg
motorway
36 mpg
59 L
Fuel Tank Capacity
64 L
601 mi
Range
362 mi
Mercedes CLS Coupé 350 BlueTEC
601 mi
362 mi
Porsche Cayman S
Environmental Impact
125.5 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).
208.4 kWh
Mercedes CLS Coupé 350 BlueTEC
125.5 kWh
208.4 kWh
Porsche Cayman S
Euro 6b (NEFZ)
Emission Standard
Euro 4
160 g/km (NEFZ)
CO2 Emissions
262 g/km (NEFZ)
Practical Convenience
Mercedes CLS Coupé 350 BlueTEC
Porsche Cayman S
4
Doors
2
4
No. of Seats
2
485 kg
Maximum Payload
215 kg
475 L
Boot Capacity
410 L









No data
Boot Capacity (Seats Down)
No data