2018 head-to-head · Midsize & Large SUV
2018 BMW X5 Plug-in Hybrid vs Porsche Cayenne Plug-in Hybrid
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 · 2.0L 4-cyl turbo · 8-speed automatic · 56 MPGe + 24 MPG
AWD · 3.0L 6-cyl supercharged · 8-speed dual-clutch · 47 MPGe + 22 MPG
The 2018 BMW X5 Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $2,167 a year to fuel (56 MPGe + 24 MPG), versus $2,402 for the 2018 Porsche Cayenne Plug-in Hybrid (47 MPGe + 22 MPG). That's roughly $235 a year, or about $1,175 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
- BMW X5 Plug-in Hybrid
- Porsche Cayenne Plug-in Hybrid
Side by side
| BMW X5 Plug-in Hybrid | Porsche Cayenne Plug-in Hybrid | |
|---|---|---|
| $2,167 | Your annual fuel cost | $2,402 |
| 56 MPGe + 24 MPG | Combined efficiency | 47 MPGe + 22 MPG |
| 55 MPGe / 23 MPG | City | 47 MPGe / 21 MPG |
| 57 MPGe / 25 MPG | Highway | 46 MPGe / 24 MPG |
| 59 kWh | Electricity use (kWh/100 mi) | 70 kWh |
| 540 mi | Driving range | 490 mi |
| 14 mi | All-electric range | 14 mi |
| 248 g/mi | Tailpipe CO₂ (g/mi) | 261 g/mi |
| 6/10 | EPA fuel economy score | 6/10 |
| 8/10 | EPA greenhouse gas score | 8/10 |
| 3 hrs | Charge time at 240V | 3 hrs |
| Plug-in hybrid | Powertrain | Plug-in hybrid |
| Premium gas + electricity | Fuel | Premium gas + electricity |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl supercharged |
| 8-speed automatic | Transmission | 8-speed dual-clutch |
| AWD | 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.
BMW X5 Plug-in Hybrid vs Porsche Cayenne Plug-in Hybrid across model years
- BMW X5 Plug-in Hybrid
- Porsche Cayenne Plug-in Hybrid
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
The BMW X5 Plug-in Hybrid goes farther between stops: about 540 miles on a full tank and charge, compared with 490 miles for the Porsche Cayenne Plug-in Hybrid.
Among 42 2018 midsize & large SUVs, the BMW X5 Plug-in Hybrid ranks 7th and the Porsche Cayenne Plug-in Hybrid 17th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 BMW X5 Plug-in Hybrid or the 2018 Porsche Cayenne Plug-in Hybrid?
Measured by cost to drive, the BMW X5 Plug-in Hybrid. The BMW X5 Plug-in Hybrid is rated 56 MPGe + 24 MPG combined and the Porsche Cayenne Plug-in Hybrid 47 MPGe + 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 BMW X5 Plug-in Hybrid vs. the Porsche Cayenne Plug-in Hybrid per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $2,167 for the BMW X5 Plug-in Hybrid and $2,402 for the Porsche Cayenne Plug-in Hybrid.
Which has more range?
The BMW X5 Plug-in Hybrid: about 540 miles versus 490 miles.
BMW X5 Plug-in Hybrid vs Porsche Cayenne Plug-in Hybrid in other years
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