The Comparative Analysis :
Mercedes CLS Coupé 500 4MATIC 7G-TRONIC PLUS (14 - 15) vs. Porsche Cayman PDK (13 - 16)
€ 84,500

€ 54,200

€ 84,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 54,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 500 is significantly bigger in every dimension. It's 21.9 inches longer, 3.1 inches wider and 4.9 inches taller than the Porsche Cayman.
Mercedes CLS Coupé 500
Porsche Cayman
55.8
74.1
81.7
50.9
70.9
77.9
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
77.9 in
55.8 in
Height
50.9 in
113.1
194.4
97.4
172.4
194.4 in
Length
172.4 in
113.1 in
Wheelbase
97.4 in
Vehicle Weight
Mercedes CLS Coupé 500
Porsche Cayman
4277 lb
Curb Weight
3120 lb
5346 lb
Gross Vehicle
Weight
Weight
3715 lb

Weight Difference:
1157 lb
27.05 %

General
Mercedes CLS Coupé 500
Porsche Cayman
C218
Generation
981C
Coupe
Car Body Style
Coupe
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

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

7-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
Mercedes CLS Coupé 500
Porsche Cayman
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz M 278
Engine Series
M 278.922
Engine Code

4
Valves
4
8
Cylinders
6
4.7 L / 230 cu in
Displacement
2.7 L / 132 cu in
402 hp
at 5000 rpm
Power
271 hp
at 7400 rpm
Mercedes CLS Coupé 500
402 hp
271 hp
Porsche Cayman
443 lb‑ft
at 1600 rpm
Max. Torque
214 lb‑ft
at 4500 rpm
Mercedes CLS Coupé 500
443 lb‑ft
214 lb‑ft
Porsche Cayman
Performance
Mercedes CLS Coupé 500
Porsche Cayman
155 mph
Maximum Speed
164 mph
4.8 sec
Acceleration 0 to 62 mph
5.6 sec
62 mph
62
mph
mph
220 ft
0.000 sec

Mercedes CLS Coupé 500
62 mph
62
mph
mph
256 ft
0.000 sec

Porsche Cayman
▶ REPLAY
10.64 lb/hp
Weight-to-Power Ratio
11.51 lb/hp
Mercedes CLS Coupé 500
10.64 lb/hp
11.51 lb/hp
Porsche Cayman
Fuel Economy / Emissions
Mercedes CLS Coupé 500
Porsche Cayman
Fuel Economy
25 mpg
combined
31 mpg
Mercedes CLS Coupé 500
25 mpg
31 mpg
Porsche Cayman
18 mpg
city
22 mpg
32 mpg
highway
40 mpg
21.1 gal
Fuel Tank Capacity
16.9 gal
518 mi
Range
516 mi
Mercedes CLS Coupé 500
518 mi
516 mi
Porsche Cayman
Environmental Impact
181.9 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).
145.8 kWh
Mercedes CLS Coupé 500
181.9 kWh
145.8 kWh
Porsche Cayman
Euro 6b (NEFZ)
Emission Standard
Euro 5 / Euro 6
360 g/mi (NEFZ)
CO2 Emissions
290 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 500
Porsche Cayman
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
595 lb
13.5 cu ft
Trunk Volume
9.5 cu ft









No data
Cargo Volume (Seats Down)
No data