Friday, February 23, 2018

Which Is More Economical? The Cayenne Diesel or the Cayenne Hybrid?

September 24, 2012 by  
Filed under Featured Content

With the recent introduction of the Porsche Cayenne Diesel to the United States market, 9 Magazine decided to compare the specifications of the diesel and the Cayenne Hybrid to determine which is more economical for consumers. This comparison is based solely on price (MSRP) vs. Miles per gallon (MPG) from an economical point of view.

From any other point of view, it’s easy to see that the SUV from Porsche is almost absolutely the same in all other regards.  The size, finish, options, etc. would be near identical in this comparison.

It’s easy to see first-off the price difference between the two models. The Porsche Cayenne Diesel has an MSRP of $55,750.00 vs. the Cayenne Hybrid which rolls in at $69,850.00. That equals a $14,100 difference in manufacturer’s suggested retail price. Score one for the Diesel. A savings of $14,100 for the entry level Diesel will have consumers able to save cash, and sales tax on that cash. (Which can range anywhere from $500 – $100 depending on what part of the country you reside.)

In terms of fuel efficiency, the specs for the Cayenne Diesel state 20mpg / City and 29mpg / Highway. The Cayenne Hybrid posts 20mpg / City and 24mpg / Highway.  For city driving, both Cayenne’s come in at 20mpg. For long-range highway driving, the Cayenne Diesel produces better efficiency. Although 5mpg is not a heck of a lot of miles, it’s still better than what the Hybrid produces. Score two for the Diesel.

At the time of this writing, and according to AAA, the national average cost for a gallon of gasoline in the United States is $3.80 per gallon and the cost for a gallon of diesel fuel is $4.10. Using those figures, the cost per mile in fuel for the Cayenne Hybrid is equal to 0.19 cents per city mile and 0.15 cents per highway mile. The cost per mile for the Cayenne Diesel is equal to 0.20 cents per mile city and 0.14 cents per mile highway. This just about equals a draw. The Hybrid is a penny less in city and the Diesel is a penny less per mile on the highway. And even though the cost for a gallon of diesel fuel is higher, the numbers work out to be almost the same.

When you compare the actual difference in cost of the MSRP of the vehicles, and use the same cost per mile, the Cayenne Diesel is the better value and more economical than the Hybrid.

Here are the actual specs of the SUV’s directly from Porsche’s website which might persuade you either way when making a decision to purchase your new Cayenne.


The Cayenne Hybrid

Engine layout Front Engine / All Wheel Drive
Cylinders 6
Displacement 3.0 liter
Horsepower 333 hp Electric: 47 hp Parallel full hybrid: 380 hp
@ rpm Combustion engine: 5500 – 6500 rpm Electric machine: >   1150 rpm Total system: 5500 rpm
Torque 369 lb.-ft. Electric: 221 lb.-ft. Parallel full hybrid:   428 lb.-ft.
Compression ratio 10.5 : 1


Top Track Speed 150 mph
0-60 mph 6.1 sec.


MSRP  =   $ 69,850.00


The Cayenne Diesel

Engine layout Front
Cylinder layout / number of cylinders 6
Displacement 3.0 Liters
Horsepower 240 hp
@ rpm 3,500 – 4,000
Torque 406 lb.- ft.
Compression ratio 16.8 : 1


Top Track Speed 135 mph
0 – 60 mph 7.2 sec.


MSRP = $ 55,750.00


Photos: Porsche