The Comparative Analysis :
Mercedes CLS Coupé 250 BlueTEC 9G-TRONIC (14 - 15) vs. Porsche 718 Cayman S PDK (19 - ..)
€ 56,900

€ 69,700

€ 56,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 69,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 250 BlueTEC is significantly bigger in every dimension. It's 22 inches longer, 3.1 inches wider and 4.8 inches taller than the Porsche 718 Cayman S.
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
55.8
74.1
81.7
51
70.9
78.5
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
78.5 in
55.8 in
Height
51 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 250 BlueTEC
Porsche 718 Cayman S
4001 lb
Curb Weight
3219 lb
5071 lb
Gross Vehicle
Weight
Weight
3737 lb

Weight Difference:
783 lb
19.57 %

General
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
C218
Generation
982C
Coupe
Car Body Style
Coupe
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

9-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
4-cylinder boxer gasoline engine with turbocharger
Mercedes-Benz OM 651
Engine Series
OM 651.924
Engine Code

4
Valves
4
4
Cylinders
4
2.1 L / 103 cu in
Displacement
2.5 L / 122 cu in
201 hp
at 3800 rpm
Power
345 hp
at 6500 rpm
Mercedes CLS Coupé 250 BlueTEC
201 hp
345 hp
Porsche 718 Cayman S
369 lb‑ft
at 1600 rpm
Max. Torque
310 lb‑ft
at 2100 rpm
Mercedes CLS Coupé 250 BlueTEC
369 lb‑ft
310 lb‑ft
Porsche 718 Cayman S
Performance
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
150 mph
Maximum Speed
177 mph
7.5 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
341 ft
0.000 sec

Mercedes CLS Coupé 250 BlueTEC
62 mph
62
mph
mph
200 ft
0.000 sec

Porsche 718 Cayman S
▶ REPLAY
19.91 lb/hp
Weight-to-Power Ratio
9.33 lb/hp
Mercedes CLS Coupé 250 BlueTEC
19.91 lb/hp
9.33 lb/hp
Porsche 718 Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
Fuel Economy
51 mpg
combined
28 mpg
Mercedes CLS Coupé 250 BlueTEC
51 mpg
28 mpg
Porsche 718 Cayman S
43 mpg
city
21 mpg
57 mpg
highway
35 mpg
15.6 gal
Fuel Tank Capacity
16.9 gal
797 mi
Range
468 mi
Mercedes CLS Coupé 250 BlueTEC
797 mi
468 mi
Porsche 718 Cayman S
Environmental Impact
94.6 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).
161.1 kWh
Mercedes CLS Coupé 250 BlueTEC
94.6 kWh
161.1 kWh
Porsche 718 Cayman S
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP
196 g/mi (NEFZ)
CO2 Emissions
333 g/mi (WLTP)
Practical Convenience
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman S
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
518 lb
13.5 cu ft
Trunk Volume
12 cu ft










No data
Cargo Volume (Seats Down)
No data