The Comparative Analysis :
Mercedes CLS Coupé 350 CDI 4MATIC 7G-TRONIC PLUS (11 - 14) vs. Porsche Cayman S Sport (08 - 09)
€ 66,500

€ 69,900

€ 66,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 69,900
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 350 CDI is significantly bigger in every dimension. It's 23.6 inches longer, 3.1 inches wider and 4.7 inches taller than the Porsche Cayman S.
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
55.7
74.1
81.7
51
70.9
77.9
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
77.9 in
55.7 in
Height
51 in
113.1
194.5
95.1
170.9
194.5 in
Length
170.9 in
113.1 in
Wheelbase
95.1 in
Vehicle Weight
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
4134 lb
Curb Weight
3120 lb
5203 lb
Gross Vehicle
Weight
Weight
3594 lb

Weight Difference:
1014 lb
24.53 %

General
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
C218
Generation
987C
Coupe
Car Body Style
Coupe
Diesel
Fuel Type
Premium Unleaded

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

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

4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.4 L / 166 cu in
261 hp
at 3800 rpm
Power
299 hp
at 6250 rpm
Mercedes CLS Coupé 350 CDI
261 hp
299 hp
Porsche Cayman S
457 lb‑ft
at 1600 rpm
Max. Torque
251 lb‑ft
at 4400 rpm
Mercedes CLS Coupé 350 CDI
457 lb‑ft
251 lb‑ft
Porsche Cayman S
Performance
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
155 mph
Maximum Speed
171 mph
6.4 sec
Acceleration 0 to 62 mph
5.4 sec
62 mph
62
mph
mph
292 ft
0.000 sec

Mercedes CLS Coupé 350 CDI
62 mph
62
mph
mph
246 ft
0.000 sec

Porsche Cayman S
▶ REPLAY
15.84 lb/hp
Weight-to-Power Ratio
10.43 lb/hp
Mercedes CLS Coupé 350 CDI
15.84 lb/hp
10.43 lb/hp
Porsche Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
Fuel Economy
35 mpg
combined
22 mpg
Mercedes CLS Coupé 350 CDI
35 mpg
22 mpg
Porsche Cayman S
27 mpg
city
15 mpg
42 mpg
highway
30 mpg
15.6 gal
Fuel Tank Capacity
16.9 gal
547 mi
Range
375 mi
Mercedes CLS Coupé 350 CDI
547 mi
375 mi
Porsche Cayman S
Environmental Impact
137.9 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).
200.8 kWh
Mercedes CLS Coupé 350 CDI
137.9 kWh
200.8 kWh
Porsche Cayman S
Euro 5
Emission Standard
Euro 4
285 g/mi (NEFZ)
CO2 Emissions
409 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 350 CDI
Porsche Cayman S
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
474 lb
14.7 cu ft
Trunk Volume
11.6 cu ft









No data
Cargo Volume (Seats Down)
No data