The Comparative Analysis :
Porsche 718 Cayman GTS (17 - 18) vs. Mercedes CLS Coupé 250 BlueTEC 4MATIC 7G-TRONIC PLUS (14 - 15)
€ 76,100
€ 59,600
€ 76,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 59,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche 718 Cayman GTS is significantly smaller in every dimension. It's 21.4 inches shorter, 3.1 inches narrower and 5.2 inches lower than the Mercedes CLS Coupé 250 BlueTEC.
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
50.6
70.9
78.5
55.8
74.1
81.7
70.9 in
Width
74.1 in
78.5 in
Width Incl. Mirrors
81.7 in
50.6 in
Height
55.8 in
97.4
173
113.1
194.4
173 in
Length
194.4 in
97.4 in
Wheelbase
113.1 in
Vehicle Weight
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
3197 lb
Curb Weight
4134 lb
3693 lb
Gross Vehicle
Weight
Weight
5203 lb
Weight Difference:
937 lb
22.67 %
General
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
982C
Generation
C218
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Diesel

Rear-wheel drive
Drivetrain
Permanent all-wheel drive (AWD)

6-speed manual transmission
Transmission
7-speed automatic transmission
Engine
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
4-cylinder boxer gasoline engine with turbocharger
Engine Type
Straight-four diesel engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz OM 651
Engine Code
OM 651.924

4
Valves
4
4
Cylinders
4
2.5 L / 122 cu in
Displacement
2.1 L / 103 cu in
360 hp
at 6500 rpm
Power
201 hp
at 3800 rpm
Porsche 718 Cayman GTS
360 hp
201 hp
Mercedes CLS Coupé 250 BlueTEC
310 lb‑ft
at 1900 rpm
Max. Torque
369 lb‑ft
at 1600 rpm
Porsche 718 Cayman GTS
310 lb‑ft
369 lb‑ft
Mercedes CLS Coupé 250 BlueTEC
Performance
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
180 mph
Maximum Speed
147 mph
4.6 sec
Acceleration 0 to 62 mph
7.9 sec
62 mph
62
mph
mph
210 ft
0.000 sec
Porsche 718 Cayman GTS
62 mph
62
mph
mph
361 ft
0.000 sec
Mercedes CLS Coupé 250 BlueTEC
▶ REPLAY
8.88 lb/hp
Weight-to-Power Ratio
20.57 lb/hp
Porsche 718 Cayman GTS
8.88 lb/hp
20.57 lb/hp
Mercedes CLS Coupé 250 BlueTEC
Fuel Economy / Emissions
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
Fuel Economy
26 mpg
combined
44 mpg
Porsche 718 Cayman GTS
26 mpg
44 mpg
Mercedes CLS Coupé 250 BlueTEC
19 mpg
city
37 mpg
34 mpg
highway
51 mpg
16.9 gal
Fuel Tank Capacity
15.6 gal
442 mi
Range
692 mi
Porsche 718 Cayman GTS
442 mi
692 mi
Mercedes CLS Coupé 250 BlueTEC
Environmental Impact
170.4 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).
109.1 kWh
Porsche 718 Cayman GTS
170.4 kWh
109.1 kWh
Mercedes CLS Coupé 250 BlueTEC
Euro 6c (NEFZ) 36ZA-ZF
Emission Standard
Euro 6b (NEFZ)
330 g/mi (NEFZ)
CO2 Emissions
225 g/mi (NEFZ)
Practical Convenience
Porsche 718 Cayman GTS
Mercedes CLS Coupé 250 BlueTEC
2
Doors
4
2
No. of Seats
4
496 lb
Maximum Payload
1069 lb
12 cu ft
Trunk Volume
13.5 cu ft










No data
Cargo Volume (Seats Down)
No data

















