The Comparative Analysis :
Mercedes CLS Coupé 250 BlueTEC 4MATIC 7G-TRONIC PLUS (14 - 15) vs. Porsche 718 Cayman (16 - 18)
€ 59,600

€ 52,700

€ 59,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 52,700
ⓘ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.
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman
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
4134 lb
Curb Weight
3109 lb
5203 lb
Gross Vehicle
Weight
Weight
3649 lb

Weight Difference:
1025 lb
24.8 %

General
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman
C218
Generation
982C
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 250 BlueTEC
Porsche 718 Cayman
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 L / 98 cu in
201 hp
at 3800 rpm
Power
296 hp
at 6500 rpm
Mercedes CLS Coupé 250 BlueTEC
201 hp
296 hp
Porsche 718 Cayman
369 lb‑ft
at 1600 rpm
Max. Torque
280 lb‑ft
at 1950 rpm
Mercedes CLS Coupé 250 BlueTEC
369 lb‑ft
280 lb‑ft
Porsche 718 Cayman
Performance
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman
147 mph
Maximum Speed
171 mph
7.9 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph
62
mph
mph
361 ft
0.000 sec

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

Porsche 718 Cayman
▶ REPLAY
20.57 lb/hp
Weight-to-Power Ratio
10.5 lb/hp
Mercedes CLS Coupé 250 BlueTEC
20.57 lb/hp
10.5 lb/hp
Porsche 718 Cayman
Fuel Economy / Emissions
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman
Fuel Economy
44 mpg
combined
32 mpg
Mercedes CLS Coupé 250 BlueTEC
44 mpg
32 mpg
Porsche 718 Cayman
37 mpg
city
24 mpg
51 mpg
highway
39 mpg
15.6 gal
Fuel Tank Capacity
14.3 gal
692 mi
Range
454 mi
Mercedes CLS Coupé 250 BlueTEC
692 mi
454 mi
Porsche 718 Cayman
Environmental Impact
109.1 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).
140.2 kWh
Mercedes CLS Coupé 250 BlueTEC
109.1 kWh
140.2 kWh
Porsche 718 Cayman
Euro 6b (NEFZ)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
225 g/mi (NEFZ)
CO2 Emissions
270 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 250 BlueTEC
Porsche 718 Cayman
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
540 lb
13.5 cu ft
Trunk Volume
12 cu ft










No data
Cargo Volume (Seats Down)
No data