The Comparative Analysis :
Mercedes CLS Coupé 63 AMG S 4MATIC SPEEDSHIFT MCT (13 - 14) vs. Porsche Cayman GT4 (15 - 16)
€ 131,100

€ 85,800

€ 131,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 85,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Mercedes CLS Coupé 63 AMG S is significantly bigger in every dimension. It's 19.8 inches longer, 2.5 inches wider and 5.9 inches taller than the Porsche Cayman GT4.
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
55.7
74.1
81.7
49.8
71.5
77.9
74.1 in
Width
71.5 in
81.7 in
Width Incl. Mirrors
77.9 in
55.7 in
Height
49.8 in
113.1
194.5
97.8
174.7
194.5 in
Length
174.7 in
113.1 in
Wheelbase
97.8 in
Vehicle Weight
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
4123 lb
Curb Weight
3120 lb
5324 lb
Gross Vehicle
Weight
Weight
3616 lb

Weight Difference:
1003 lb
24.33 %

General
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
C218
Generation
981C
Coupe
Car Body Style
Coupe
Premium 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 63 AMG S
Porsche Cayman GT4
V8 gasoline engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz M 157
Engine Series
M 157.981
Engine Code

4
Valves
4
8
Cylinders
6
5.5 L / 269 cu in
Displacement
3.8 L / 186 cu in
577 hp
at 5500 rpm
Power
380 hp
at 7400 rpm
Mercedes CLS Coupé 63 AMG S
577 hp
380 hp
Porsche Cayman GT4
590 lb‑ft
at 2000 rpm
Max. Torque
310 lb‑ft
at 4750 rpm
Mercedes CLS Coupé 63 AMG S
590 lb‑ft
310 lb‑ft
Porsche Cayman GT4
Performance
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
155 mph
Maximum Speed
183 mph
3.6 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
164 ft
0.000 sec

Mercedes CLS Coupé 63 AMG S
62 mph
62
mph
mph
200 ft
0.000 sec

Porsche Cayman GT4
▶ REPLAY
7.15 lb/hp
Weight-to-Power Ratio
8.21 lb/hp
Mercedes CLS Coupé 63 AMG S
7.15 lb/hp
8.21 lb/hp
Porsche Cayman GT4
Fuel Economy / Emissions
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
Fuel Economy
23 mpg
combined
23 mpg
Mercedes CLS Coupé 63 AMG S
23 mpg
23 mpg
Porsche Cayman GT4
16 mpg
city
16 mpg
29 mpg
highway
30 mpg
17.4 gal
Fuel Tank Capacity
14.3 gal
395 mi
Range
326 mi
Mercedes CLS Coupé 63 AMG S
395 mi
326 mi
Porsche Cayman GT4
Environmental Impact
197 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).
195.2 kWh
Mercedes CLS Coupé 63 AMG S
197 kWh
195.2 kWh
Porsche Cayman GT4
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
391 g/mi (NEFZ)
CO2 Emissions
383 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 63 AMG S
Porsche Cayman GT4
4
Doors
2
4
No. of Seats
2
1202 lb
Maximum Payload
496 lb
14.7 cu ft
Trunk Volume
12 cu ft










No data
Cargo Volume (Seats Down)
No data