2016 head-to-head · Large Car
2016 Cadillac CT6 vs Porsche Panamera 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.
RWD · 3.0L 6-cyl supercharged · 8-speed dual-clutch · 51 MPGe + 25 MPG
The 2016 Cadillac CT6 is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,860 a year to fuel (25 MPG), versus $1,979 for the 2016 Porsche Panamera Plug-in Hybrid (51 MPGe + 25 MPG). That's roughly $119 a year, or about $594 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 CT6
- Porsche Panamera Plug-in Hybrid
Side by side
| Cadillac CT6 | Porsche Panamera Plug-in Hybrid | |
|---|---|---|
| $1,860 | Your annual fuel cost | $1,979 |
| 25 MPG | Combined efficiency | 51 MPGe + 25 MPG |
| 22 MPG | City | 43 MPGe / 23 MPG |
| 30 MPG | Highway | 66 MPGe / 29 MPG |
| — | Electricity use (kWh/100 mi) | 51 kWh |
| — | Driving range | 560 mi |
| — | All-electric range | 16 mi |
| 110 cu ft | Passenger volume | 108 cu ft |
| 15 cu ft | Cargo volume | 16 cu ft |
| 357 g/mi | Tailpipe CO₂ (g/mi) | 229 g/mi |
| 6/10 | EPA fuel economy score | 7/10 |
| 6/10 | EPA greenhouse gas score | 9/10 |
| — | Charge time at 240V | 3 hrs |
| Gas | Powertrain | Plug-in hybrid |
| Regular gasoline | Fuel | Premium gas + electricity |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl supercharged |
| 8-speed automatic | Transmission | 8-speed dual-clutch |
| RWD | Drivetrain | RWD |
✓ 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 CT6 vs Porsche Panamera Plug-in Hybrid across model years
- Cadillac CT6
- Porsche Panamera 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
Per EPA interior volume figures, the Porsche Panamera Plug-in Hybrid has more cargo space (16 vs. 15 cu ft).
Among 30 2016 large cars, the Cadillac CT6 ranks 6th and the Porsche Panamera Plug-in Hybrid 7th for lowest fuel cost.
The powertrains differ: the Cadillac CT6 is a conventional gas model, while the Porsche Panamera Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2016 Cadillac CT6 or the 2016 Porsche Panamera Plug-in Hybrid?
Measured by cost to drive, the Cadillac CT6. The Cadillac CT6 is rated 25 MPG combined and the Porsche Panamera Plug-in Hybrid 51 MPGe + 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Cadillac CT6 vs. the Porsche Panamera Plug-in Hybrid per year?
At 15,000 miles a year with $3.10/gal regular gas, 18¢/kWh electricity and $3.95/gal premium gas, about $1,860 for the Cadillac CT6 and $1,979 for the Porsche Panamera Plug-in Hybrid.
Which has more cargo space?
The Porsche Panamera Plug-in Hybrid, with 16 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).
Cadillac CT6 vs Porsche Panamera Plug-in Hybrid in other years
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