The Comparative Analysis :
Mercedes CLS Coupé 450 EQ Boost 4MATIC 9G-TRONIC (18 - 19) vs. Porsche Cayman GT4 (15 - 16)
€ 70,900

€ 85,800

€ 70,900
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 450 EQ Boost is significantly bigger in every dimension. It's 55 cm longer, 7.3 cm wider and 16.9 cm taller than the Porsche Cayman GT4.
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
1435
1890
2069
1266
1817
1978
1890 mm
Width
1817 mm
2069 mm
Width Incl. Mirrors
1978 mm
1435 mm
Height
1266 mm
2939
4988
2484
4438
4988 mm
Length
4438 mm
2939 mm
Wheelbase
2484 mm
Vehicle Weight
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
1940 kg
Kerb Weight
1415 kg
2585 kg
Gross Vehicle
Weight
Weight
1640 kg

Weight Difference:
525 kg
27.06 %

General
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
C257
Generation
981C
Coupe
Car Body Style
Coupe
Unleaded (95 RON)
Fuel Type
Super Unleaded (98 RON)

Permanent all-wheel drive
Drive
Rear-wheel drive

9-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
6-cylinder mild hybrid petrol engine with turbocharger and electric driven compressor
Engine Type
6-cylinder boxer petrol engine (naturally aspirated engine)
Mercedes-Benz M 256
Engine Series
M 256.930
Engine Code

4
Valves
4
6
Cylinders
6
2999 CC
Engine Capacity
3800 CC
383 bhp
at 5500 rpm
Power
380 bhp
at 7400 rpm
Mercedes CLS Coupé 450 EQ Boost
383 bhp
380 bhp
Porsche Cayman GT4
500 NM
at 1600 rpm
Max. Torque
420 NM
at 4750 rpm
Mercedes CLS Coupé 450 EQ Boost
500 NM
420 NM
Porsche Cayman GT4
Performance
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
155 mph
Maximum Speed
183 mph
4.8 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
67 m
0.000 sec

Mercedes CLS Coupé 450 EQ Boost
62 mph
62
mph
mph
61 m
0.000 sec

Porsche Cayman GT4
▶ REPLAY
5.07 kg/bhp
Weight-to-Power Ratio
3.72 kg/bhp
Mercedes CLS Coupé 450 EQ Boost
5.07 kg/bhp
3.72 kg/bhp
Porsche Cayman GT4
Fuel Economy / Emissions
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
Fuel Economy
38 mpg
combined
27 mpg
Mercedes CLS Coupé 450 EQ Boost
38 mpg
27 mpg
Porsche Cayman GT4
29 mpg
city
19 mpg
46 mpg
motorway
36 mpg
66 L
Fuel Tank Capacity
54 L
547 mi
Range
326 mi
Mercedes CLS Coupé 450 EQ Boost
547 mi
326 mi
Porsche Cayman GT4
Environmental Impact
142.1 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).
195.2 kWh
Mercedes CLS Coupé 450 EQ Boost
142.1 kWh
195.2 kWh
Porsche Cayman GT4
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6b (NEFZ)
190 g/km (WLTP)
CO2 Emissions
238 g/km (NEFZ)
Practical Convenience
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GT4
4
Doors
2
5
No. of Seats
2
645 kg
Maximum Payload
225 kg
520 L
Boot Capacity
425 L










No data
Boot Capacity (Seats Down)
No data