The Comparative Analysis :
Mercedes CLS Coupé 450 EQ Boost 4MATIC 9G-TRONIC (18 - 19) vs. Porsche Cayman GTS (14 - 16)
€ 70,900

€ 73,800

€ 70,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 73,800
ⓘ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 58.4 cm longer, 8.9 cm wider and 15.1 cm taller than the Porsche Cayman GTS.
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
1435
1890
2069
1284
1801
1978
1890 mm
Width
1801 mm
2069 mm
Width Incl. Mirrors
1978 mm
1435 mm
Height
1284 mm
2939
4988
2475
4404
4988 mm
Length
4404 mm
2939 mm
Wheelbase
2475 mm
Vehicle Weight
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
1940 kg
Kerb Weight
1420 kg
2585 kg
Gross Vehicle
Weight
Weight
1665 kg

Weight Difference:
520 kg
26.8 %

General
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
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 GTS
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
3436 CC
383 bhp
at 5500 rpm
Power
335 bhp
at 7400 rpm
Mercedes CLS Coupé 450 EQ Boost
383 bhp
335 bhp
Porsche Cayman GTS
500 NM
at 1600 rpm
Max. Torque
380 NM
at 4750 rpm
Mercedes CLS Coupé 450 EQ Boost
500 NM
380 NM
Porsche Cayman GTS
Performance
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
155 mph
Maximum Speed
177 mph
4.8 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
67 m
0.000 sec

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

Porsche Cayman GTS
▶ REPLAY
5.07 kg/bhp
Weight-to-Power Ratio
4.24 kg/bhp
Mercedes CLS Coupé 450 EQ Boost
5.07 kg/bhp
4.24 kg/bhp
Porsche Cayman GTS
Fuel Economy / Emissions
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
Fuel Economy
38 mpg
combined
31 mpg
Mercedes CLS Coupé 450 EQ Boost
38 mpg
31 mpg
Porsche Cayman GTS
29 mpg
city
22 mpg
46 mpg
motorway
40 mpg
66 L
Fuel Tank Capacity
64 L
547 mi
Range
442 mi
Mercedes CLS Coupé 450 EQ Boost
547 mi
442 mi
Porsche Cayman GTS
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).
170.4 kWh
Mercedes CLS Coupé 450 EQ Boost
142.1 kWh
170.4 kWh
Porsche Cayman GTS
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6b (NEFZ)
190 g/km (WLTP)
CO2 Emissions
211 g/km (NEFZ)
Practical Convenience
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman GTS
4
Doors
2
5
No. of Seats
2
645 kg
Maximum Payload
245 kg
520 L
Boot Capacity
334 L









No data
Boot Capacity (Seats Down)
No data