The Comparative Analysis :
Mercedes CLS Coupé 400 9G-TRONIC (16 - 17) vs. Porsche 718 Cayman GT4 (19 - ..)
€ 63,400

€ 96,200

€ 63,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 96,200
ⓘ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 18.9 inches longer, 3.1 inches wider and 5.9 inches taller than the Porsche 718 Cayman GT4.
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
55.8
74.1
81.7
50
70.9
78.5
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
78.5 in
55.8 in
Height
50 in
113.1
194.4
97.8
175.4
194.4 in
Length
175.4 in
113.1 in
Wheelbase
97.8 in
Vehicle Weight
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
3913 lb
Curb Weight
3296 lb
4982 lb
Gross Vehicle
Weight
Weight
3858 lb

Weight Difference:
617 lb
15.77 %

General
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
C218
Generation
982C
Coupe
Car Body Style
Coupe
Mid-Grade Unleaded
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

9-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
V6 gasoline engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz M 276
Engine Series
M 276.850
Engine Code

4
Valves
4
6
Cylinders
6
3.5 L / 171 cu in
Displacement
4 L / 196 cu in
328 hp
at 5250 rpm
Power
414 hp
at 7600 rpm
Mercedes CLS Coupé 400
328 hp
414 hp
Porsche 718 Cayman GT4
354 lb‑ft
at 1200 rpm
Max. Torque
310 lb‑ft
at 5000 rpm
Mercedes CLS Coupé 400
354 lb‑ft
310 lb‑ft
Porsche 718 Cayman GT4
Performance
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
155 mph
Maximum Speed
189 mph
5.3 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
243 ft
0.000 sec

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

Porsche 718 Cayman GT4
▶ REPLAY
11.93 lb/hp
Weight-to-Power Ratio
7.96 lb/hp
Mercedes CLS Coupé 400
11.93 lb/hp
7.96 lb/hp
Porsche 718 Cayman GT4
Fuel Economy / Emissions
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
Fuel Economy
32 mpg
combined
22 mpg
Mercedes CLS Coupé 400
32 mpg
22 mpg
Porsche 718 Cayman GT4
23 mpg
city
15 mpg
41 mpg
highway
29 mpg
15.6 gal
Fuel Tank Capacity
16.9 gal
495 mi
Range
365 mi
Mercedes CLS Coupé 400
495 mi
365 mi
Porsche 718 Cayman GT4
Environmental Impact
140.2 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).
206.5 kWh
Mercedes CLS Coupé 400
140.2 kWh
206.5 kWh
Porsche 718 Cayman GT4
Euro 6b (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP) 36CH, 36CI, 36DG
267 g/mi (NEFZ)
CO2 Emissions
404 g/mi (WLTP)
Practical Convenience
Mercedes CLS Coupé 400
Porsche 718 Cayman GT4
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
562 lb
13.5 cu ft
Trunk Volume
11.9 cu ft









No data
Cargo Volume (Seats Down)
No data