The Comparative Analysis :
Mercedes CLS Coupé 400 7G-TRONIC PLUS (14 - 16) vs. Porsche 718 Cayman S (16 - 18)
€ 63,300

€ 65,200

€ 63,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 65,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 400 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 400
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 400
Porsche 718 Cayman S
3913 lb
Curb Weight
3153 lb
4982 lb
Gross Vehicle
Weight
Weight
3671 lb

Weight Difference:
761 lb
19.45 %

General
Mercedes CLS Coupé 400
Porsche 718 Cayman S
C218
Generation
982C
Coupe
Car Body Style
Coupe
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

7-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes CLS Coupé 400
Porsche 718 Cayman S
V6 gasoline engine with two turbochargers (biturbo)
Engine Type
4-cylinder boxer gasoline engine with turbocharger
Mercedes-Benz M 276
Engine Series
M 276.850
Engine Code

4
Valves
4
6
Cylinders
4
3.5 L / 171 cu in
Displacement
2.5 L / 122 cu in
328 hp
at 5250 rpm
Power
345 hp
at 6500 rpm
Mercedes CLS Coupé 400
328 hp
345 hp
Porsche 718 Cayman S
354 lb‑ft
at 1200 rpm
Max. Torque
310 lb‑ft
at 1900 rpm
Mercedes CLS Coupé 400
354 lb‑ft
310 lb‑ft
Porsche 718 Cayman S
Performance
Mercedes CLS Coupé 400
Porsche 718 Cayman S
155 mph
Maximum Speed
177 mph
5.3 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
243 ft
0.000 sec

Mercedes CLS Coupé 400
62 mph
62
mph
mph
210 ft
0.000 sec

Porsche 718 Cayman S
▶ REPLAY
11.93 lb/hp
Weight-to-Power Ratio
9.14 lb/hp
Mercedes CLS Coupé 400
11.93 lb/hp
9.14 lb/hp
Porsche 718 Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 400
Porsche 718 Cayman S
Fuel Economy
33 mpg
combined
29 mpg
Mercedes CLS Coupé 400
33 mpg
29 mpg
Porsche 718 Cayman S
25 mpg
city
22 mpg
42 mpg
highway
36 mpg
15.6 gal
Fuel Tank Capacity
16.9 gal
516 mi
Range
491 mi
Mercedes CLS Coupé 400
516 mi
491 mi
Porsche 718 Cayman S
Environmental Impact
134.5 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).
153.5 kWh
Mercedes CLS Coupé 400
134.5 kWh
153.5 kWh
Porsche 718 Cayman S
Euro 6b (NEFZ)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
264 g/mi (NEFZ)
CO2 Emissions
296 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 400
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