The Comparative Analysis :
Mercedes CLS Coupé 450 EQ Boost 4MATIC 9G-TRONIC (18 - 19) vs. Porsche 718 Cayman S PDK (16 - 18)
€ 70,900
€ 68,000
€ 70,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 68,000
ⓘ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 S.
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
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 S
4277 lb
Curb Weight
3219 lb
5699 lb
Gross Vehicle
Weight
Weight
3737 lb
Weight Difference:
1058 lb
24.74 %
General
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
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
7-speed dual clutch transmission
Engine
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
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
2.5 L / 122 cu in
383 hp
at 5500 rpm
Power
345 hp
at 6500 rpm
Mercedes CLS Coupé 450 EQ Boost
383 hp
345 hp
Porsche 718 Cayman S
369 lb‑ft
at 1600 rpm
Max. Torque
310 lb‑ft
at 1900 rpm
Mercedes CLS Coupé 450 EQ Boost
369 lb‑ft
310 lb‑ft
Porsche 718 Cayman S
Performance
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
155 mph
Maximum Speed
177 mph
4.8 sec
Acceleration 0 to 62 mph
4.4 sec
62 mph
62
mph
mph
220 ft
0.000 sec
Mercedes CLS Coupé 450 EQ Boost
62 mph
62
mph
mph
200 ft
0.000 sec
Porsche 718 Cayman S
▶ REPLAY
11.17 lb/hp
Weight-to-Power Ratio
9.33 lb/hp
Mercedes CLS Coupé 450 EQ Boost
11.17 lb/hp
9.33 lb/hp
Porsche 718 Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
Fuel Economy
31 mpg
combined
32 mpg
Mercedes CLS Coupé 450 EQ Boost
31 mpg
32 mpg
Porsche 718 Cayman S
24 mpg
city
25 mpg
39 mpg
highway
39 mpg
17.4 gal
Fuel Tank Capacity
16.9 gal
547 mi
Range
545 mi
Mercedes CLS Coupé 450 EQ Boost
547 mi
545 mi
Porsche 718 Cayman S
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).
138.2 kWh
Mercedes CLS Coupé 450 EQ Boost
142.1 kWh
138.2 kWh
Porsche 718 Cayman S
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
306 g/mi (WLTP)
CO2 Emissions
269 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 450 EQ Boost
Porsche 718 Cayman S
4
Doors
2
5
No. of Seats
2
1422 lb
Maximum Payload
518 lb
14.7 cu ft
Trunk Volume
12 cu ft
No data
Cargo Volume (Seats Down)
No data
