The Comparative Analysis :
Mercedes CLS Coupé 450 EQ Boost 4MATIC 9G-TRONIC (18 - 19) vs. Porsche Cayman S Tiptronic (05 - 09)
€ 70,900
€ 62,900
€ 70,900
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 62,900
ⓘ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 25.5 inches longer, 3.5 inches wider and 5.1 inches taller than the Porsche Cayman S.
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
56.5
74.4
81.5
51.4
70.9
77.9
74.4 in
Width
70.9 in
81.5 in
Width Incl. Mirrors
77.9 in
56.5 in
Height
51.4 in
115.7
196.4
95.1
170.9
196.4 in
Length
170.9 in
115.7 in
Wheelbase
95.1 in
Vehicle Weight
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
4277 lb
Curb Weight
3208 lb
5699 lb
Gross Vehicle
Weight
Weight
3682 lb
Weight Difference:
1069 lb
24.99 %
General
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
C257
Generation
987C
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
5-speed automatic transmission
Engine
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
6-cylinder mild hybrid gasoline engine with turbocharger and electric driven compressor
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz M 256
Engine Series
M 256.930
Engine Code
4
Valves
4
6
Cylinders
6
3 L / 147 cu in
Displacement
3.4 L / 166 cu in
383 hp
at 5500 rpm
Power
291 hp
at 6250 rpm
Mercedes CLS Coupé 450 EQ Boost
383 hp
291 hp
Porsche Cayman S
369 lb‑ft
at 1600 rpm
Max. Torque
251 lb‑ft
at 4400 rpm
Mercedes CLS Coupé 450 EQ Boost
369 lb‑ft
251 lb‑ft
Porsche Cayman S
Performance
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
155 mph
Maximum Speed
166 mph
4.8 sec
Acceleration 0 to 62 mph
6.1 sec
62 mph
62
mph
mph
220 ft
0.000 sec
Mercedes CLS Coupé 450 EQ Boost
62 mph
62
mph
mph
279 ft
0.000 sec
Porsche Cayman S
▶ REPLAY
11.17 lb/hp
Weight-to-Power Ratio
11.02 lb/hp
Mercedes CLS Coupé 450 EQ Boost
11.17 lb/hp
11.02 lb/hp
Porsche Cayman S
Fuel Economy / Emissions
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
Fuel Economy
31 mpg
combined
21 mpg
Mercedes CLS Coupé 450 EQ Boost
31 mpg
21 mpg
Porsche Cayman S
24 mpg
city
14 mpg
39 mpg
highway
30 mpg
17.4 gal
Fuel Tank Capacity
16.9 gal
547 mi
Range
362 mi
Mercedes CLS Coupé 450 EQ Boost
547 mi
362 mi
Porsche 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).
208.4 kWh
Mercedes CLS Coupé 450 EQ Boost
142.1 kWh
208.4 kWh
Porsche Cayman S
Euro 6d-TEMP (WLTP) 36AG-AI
Emission Standard
Euro 4
306 g/mi (WLTP)
CO2 Emissions
422 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 450 EQ Boost
Porsche Cayman S
4
Doors
2
5
No. of Seats
2
1422 lb
Maximum Payload
474 lb
14.7 cu ft
Trunk Volume
11.6 cu ft
No data
Cargo Volume (Seats Down)
No data
