The Comparative Analysis :
Porsche Cayman (09 - 12) vs. Mercedes E 400 d Coupé 4MATIC 9G-TRONIC (18 - ..)
€ 50,800

€ 65,500

€ 50,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 65,500
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The Porsche Cayman is significantly smaller in every dimension. It's 18.9 inches shorter, 2.3 inches narrower and 5 inches lower than the Mercedes E 400 d Coupé.
Porsche Cayman
Mercedes E 400 d Coupé
51.3
70.9
77.9
56.3
73.2
80.9
70.9 in
Width
73.2 in
77.9 in
Width Incl. Mirrors
80.9 in
51.3 in
Height
56.3 in
95.1
171.1
113.1
190
171.1 in
Length
190 in
95.1 in
Wheelbase
113.1 in
Vehicle Weight
Porsche Cayman
Mercedes E 400 d Coupé
3097 lb
Curb Weight
4277 lb
3605 lb
Gross Vehicle
Weight
Weight
5379 lb

Weight Difference:
1179 lb
27.57 %

General
Porsche Cayman
Mercedes E 400 d Coupé
987C
Generation
C238
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Diesel

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

6-speed manual transmission
Transmission
9-speed automatic transmission
Engine
Porsche Cayman
Mercedes E 400 d Coupé
6-cylinder boxer gasoline engine (naturally aspirated engine)
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
Engine Series
Mercedes-Benz OM 656
Engine Code
OM 656.929

4
Valves
4
6
Cylinders
6
2.9 L / 142 cu in
Displacement
2.9 L / 142 cu in
261 hp
at 7200 rpm
Power
335 hp
at 3400 rpm
Porsche Cayman
261 hp
335 hp
Mercedes E 400 d Coupé
221 lb‑ft
at 4400 rpm
Max. Torque
516 lb‑ft
at 1200 rpm
Porsche Cayman
221 lb‑ft
516 lb‑ft
Mercedes E 400 d Coupé
Performance
Porsche Cayman
Mercedes E 400 d Coupé
165 mph
Maximum Speed
155 mph
5.8 sec
Acceleration 0 to 62 mph
5.1 sec
62 mph
62
mph
mph
266 ft
0.000 sec

Porsche Cayman
62 mph
62
mph
mph
233 ft
0.000 sec

Mercedes E 400 d Coupé
▶ REPLAY
11.87 lb/hp
Weight-to-Power Ratio
12.77 lb/hp
Porsche Cayman
11.87 lb/hp
12.77 lb/hp
Mercedes E 400 d Coupé
Fuel Economy / Emissions
Porsche Cayman
Mercedes E 400 d Coupé
Fuel Economy
25 mpg
combined
40 mpg
Porsche Cayman
25 mpg
40 mpg
Mercedes E 400 d Coupé
17 mpg
city
34 mpg
34 mpg
highway
44 mpg
17.2 gal
Fuel Tank Capacity
13.2 gal
429 mi
Range
526 mi
Porsche Cayman
429 mi
526 mi
Mercedes E 400 d Coupé
Environmental Impact
178.2 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).
121.3 kWh
Porsche Cayman
178.2 kWh
121.3 kWh
Mercedes E 400 d Coupé
Euro 5
Emission Standard
Euro 6d-TEMP
356 g/mi (NEFZ)
CO2 Emissions
286 g/mi (WLTP)
Practical Convenience
Porsche Cayman
Mercedes E 400 d Coupé
2
Doors
3
2
No. of Seats
4
507 lb
Maximum Payload
1102 lb
11.6 cu ft
Trunk Volume
12 cu ft









No data
Cargo Volume (Seats Down)
No data