The Comparative Analysis :
Mercedes CLS Coupé 220 d 9G-TRONIC (15 - 17) vs. Porsche Cayman GTS (14 - 16)
€ 54,800

€ 73,800

€ 54,800
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 220 d is significantly bigger in every dimension. It's 21 inches longer, 3.1 inches wider and 5.3 inches taller than the Porsche Cayman GTS.
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
55.8
74.1
81.7
50.6
70.9
77.9
74.1 in
Width
70.9 in
81.7 in
Width Incl. Mirrors
77.9 in
55.8 in
Height
50.6 in
113.1
194.4
97.4
173.4
194.4 in
Length
173.4 in
113.1 in
Wheelbase
97.4 in
Vehicle Weight
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
3946 lb
Curb Weight
3131 lb
5016 lb
Gross Vehicle
Weight
Weight
3671 lb

Weight Difference:
816 lb
20.68 %

General
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
C218
Generation
981C
Coupe
Car Body Style
Coupe
Diesel
Fuel Type
Premium Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

9-speed automatic transmission
Transmission
6-speed manual transmission
Engine
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
6-cylinder boxer gasoline engine (naturally aspirated engine)
Mercedes-Benz OM 651
Engine Series
OM 651.924
Engine Code

4
Valves
4
4
Cylinders
6
2.1 L / 103 cu in
Displacement
3.4 L / 166 cu in
168 hp
at 3000 rpm
Power
335 hp
at 7400 rpm
Mercedes CLS Coupé 220 d
168 hp
335 hp
Porsche Cayman GTS
295 lb‑ft
at 1400 rpm
Max. Torque
280 lb‑ft
at 4750 rpm
Mercedes CLS Coupé 220 d
295 lb‑ft
280 lb‑ft
Porsche Cayman GTS
Performance
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
140 mph
Maximum Speed
177 mph
8.3 sec
Acceleration 0 to 62 mph
4.9 sec
62 mph
62
mph
mph
377 ft
0.000 sec

Mercedes CLS Coupé 220 d
62 mph
62
mph
mph
223 ft
0.000 sec

Porsche Cayman GTS
▶ REPLAY
23.49 lb/hp
Weight-to-Power Ratio
9.35 lb/hp
Mercedes CLS Coupé 220 d
23.49 lb/hp
9.35 lb/hp
Porsche Cayman GTS
Fuel Economy / Emissions
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
Fuel Economy
51 mpg
combined
26 mpg
Mercedes CLS Coupé 220 d
51 mpg
26 mpg
Porsche Cayman GTS
43 mpg
city
19 mpg
57 mpg
highway
33 mpg
15.6 gal
Fuel Tank Capacity
16.9 gal
797 mi
Range
442 mi
Mercedes CLS Coupé 220 d
797 mi
442 mi
Porsche Cayman GTS
Environmental Impact
94.6 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 220 d
94.6 kWh
170.4 kWh
Porsche Cayman GTS
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
193 g/mi (NEFZ)
CO2 Emissions
340 g/mi (NEFZ)
Practical Convenience
Mercedes CLS Coupé 220 d
Porsche Cayman GTS
4
Doors
2
4
No. of Seats
2
1069 lb
Maximum Payload
540 lb
13.5 cu ft
Trunk Volume
9.5 cu ft









No data
Cargo Volume (Seats Down)
No data