2016 head-to-head · Midsize & Large SUV
2016 Cadillac SRX vs Porsche Cayenne Diesel
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 24 MPG
The 2016 Porsche Cayenne Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, it costs about $2,312 a year to fuel (24 MPG), versus $2,447 for the 2016 Cadillac SRX (19 MPG). That's roughly $135 a year, or about $674 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Cadillac SRX
- Porsche Cayenne Diesel
Side by side
| Cadillac SRX | Porsche Cayenne Diesel | |
|---|---|---|
| $2,447 | Your annual fuel cost | $2,312 |
| 19 MPG | Combined efficiency | 24 MPG |
| 17 MPG | City | 21 MPG |
| 24 MPG | Highway | 28 MPG |
| 101 cu ft | Passenger volume | — |
| 30 cu ft | Cargo volume | — |
| 462 g/mi | Tailpipe CO₂ (g/mi) | 434 g/mi |
| 4/10 | EPA fuel economy score | 5/10 |
| 4/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Diesel |
| Regular gasoline | Fuel | Diesel |
| 3.6L 6-cyl | Engine / motor | 3.0L 6-cyl turbo |
| 6-speed automatic | Transmission | 8-speed automatic |
| FWD | Drivetrain | AWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Cadillac SRX vs Porsche Cayenne Diesel across model years
- Cadillac SRX
- Porsche Cayenne Diesel
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 44 2016 midsize & large SUVs, the Cadillac SRX ranks 21st and the Porsche Cayenne Diesel 14th for lowest fuel cost.
The powertrains differ: the Cadillac SRX is a conventional gas model, while the Porsche Cayenne Diesel is a diesel.
Frequently asked questions
Which is more fuel-efficient, the 2016 Cadillac SRX or the 2016 Porsche Cayenne Diesel?
Measured by cost to drive, the Porsche Cayenne Diesel. The Cadillac SRX is rated 19 MPG combined and the Porsche Cayenne Diesel 24 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Cadillac SRX vs. the Porsche Cayenne Diesel per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, about $2,447 for the Cadillac SRX and $2,312 for the Porsche Cayenne Diesel.
Cadillac SRX vs Porsche Cayenne Diesel in other years
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