The Comparative Analysis :
Mercedes CLS Coupé 500 4MATIC 7G-TRONIC PLUS (11 - 14) vs. Porsche 718 Cayman GTS (19 - ..)
€ 83,700

€ 77,200

€ 83,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 77,200
ⓘ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 21.5 inches longer, 3.1 inches wider and 5.1 inches taller than the Porsche 718 Cayman GTS.
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
55.7
74.1
81.7
50.6
70.9
78.5
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
78.5 in
55.7 in
Height
50.6 in
113.1
194.5
97.4
173
194.5 in
Length
173 in
113.1 in
Wheelbase
97.4 in
Vehicle Weight
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
4277 lb
Curb Weight
3197 lb
5346 lb
Gross Vehicle
Weight
Weight
3693 lb

Weight Difference:
1080 lb
25.25 %

General
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
C218
Generation
982C
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
6-speed manual transmission
Engine
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
4-cylinder boxer gasoline engine with turbocharger
Mercedes-Benz M 278
Engine Series
M 278.922
Engine Code

4
Valves
4
8
Cylinders
4
4.7 L / 230 cu in
Displacement
2.5 L / 122 cu in
402 hp
at 5000 rpm
Power
360 hp
at 6500 rpm
Mercedes CLS Coupé 500
402 hp
360 hp
Porsche 718 Cayman GTS
443 lb‑ft
at 1600 rpm
Max. Torque
317 lb‑ft
at 1900 rpm
Mercedes CLS Coupé 500
443 lb‑ft
317 lb‑ft
Porsche 718 Cayman GTS
Performance
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
155 mph
Maximum Speed
180 mph
5.2 sec
Acceleration 0 to 62 mph
4.6 sec
62 mph
62
mph
mph
236 ft
0.000 sec

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

Porsche 718 Cayman GTS
▶ REPLAY
10.64 lb/hp
Weight-to-Power Ratio
8.88 lb/hp
Mercedes CLS Coupé 500
10.64 lb/hp
8.88 lb/hp
Porsche 718 Cayman GTS
Fuel Economy / Emissions
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
Fuel Economy
25 mpg
combined
26 mpg
Mercedes CLS Coupé 500
25 mpg
26 mpg
Porsche 718 Cayman GTS
18 mpg
city
18 mpg
32 mpg
highway
33 mpg
21.1 gal
Fuel Tank Capacity
16.9 gal
518 mi
Range
432 mi
Mercedes CLS Coupé 500
518 mi
432 mi
Porsche 718 Cayman GTS
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).
174.3 kWh
Mercedes CLS Coupé 500
181.9 kWh
174.3 kWh
Porsche 718 Cayman GTS
Euro 5
Emission Standard
Euro 6d-TEMP
360 g/mi (NEFZ)
CO2 Emissions
362 g/mi (WLTP)
Practical Convenience
Mercedes CLS Coupé 500
Porsche 718 Cayman GTS
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
496 lb
14.7 cu ft
Trunk Volume
12 cu ft










No data
Cargo Volume (Seats Down)
No data