The Comparative Analysis :
Mercedes CLS Coupé 450 EQ Boost 4MATIC 9G-TRONIC (18 - 19) vs. Porsche 718 Cayman (19 - ..)
€ 70,900
€ 54,400
€ 70,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 54,400
ⓘ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 24 inches longer, 3.5 inches wider and 5.5 inches taller than the Porsche 718 Cayman.
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
56.5
74.4
81.5
51
70.9
78.5
74.4 in
Width
70.9 in
81.5 in
Width Incl. Mirrors
78.5 in
56.5 in
Height
51 in
115.7
196.4
97.4
172.4
196.4 in
Length
172.4 in
115.7 in
Wheelbase
97.4 in
Vehicle Weight
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
4277 lb
Curb Weight
3109 lb
5699 lb
Gross Vehicle
Weight
Weight
3649 lb
Weight Difference:
1168 lb
27.31 %
General
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
C257
Generation
982C
Coupe
Car Body Style
Coupe
Mid-Grade Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Rear-wheel drive
9-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
6-cylinder mild hybrid gasoline engine with turbocharger and electric driven compressor
Engine Type
4-cylinder boxer gasoline engine with turbocharger
Mercedes-Benz M 256
Engine Series
M 256.930
Engine Code
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
383 hp
at 5500 rpm
Power
296 hp
at 6500 rpm
Mercedes CLS Coupé 450 EQ Boost
383 hp
296 hp
Porsche 718 Cayman
369 lb‑ft
at 1600 rpm
Max. Torque
280 lb‑ft
at 2150 rpm
Mercedes CLS Coupé 450 EQ Boost
369 lb‑ft
280 lb‑ft
Porsche 718 Cayman
Performance
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
155 mph
Maximum Speed
171 mph
4.8 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph
62
mph
mph
220 ft
0.000 sec
Mercedes CLS Coupé 450 EQ Boost
62 mph
62
mph
mph
233 ft
0.000 sec
Porsche 718 Cayman
▶ REPLAY
11.17 lb/hp
Weight-to-Power Ratio
10.5 lb/hp
Mercedes CLS Coupé 450 EQ Boost
11.17 lb/hp
10.5 lb/hp
Porsche 718 Cayman
Fuel Economy / Emissions
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
Fuel Economy
31 mpg
combined
29 mpg
Mercedes CLS Coupé 450 EQ Boost
31 mpg
29 mpg
Porsche 718 Cayman
24 mpg
city
21 mpg
39 mpg
highway
38 mpg
17.4 gal
Fuel Tank Capacity
14.3 gal
547 mi
Range
414 mi
Mercedes CLS Coupé 450 EQ Boost
547 mi
414 mi
Porsche 718 Cayman
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).
153.5 kWh
Mercedes CLS Coupé 450 EQ Boost
142.1 kWh
153.5 kWh
Porsche 718 Cayman
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6d-TEMP
306 g/mi (WLTP)
CO2 Emissions
317 g/mi (WLTP)
Practical Convenience
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman
4
Doors
2
5
No. of Seats
2
1422 lb
Maximum Payload
540 lb
14.7 cu ft
Trunk Volume
12 cu ft
No data
Cargo Volume (Seats Down)
No data
