2025 head-to-head · Large Car
2025 Audi S8 Hybrid vs Porsche Panamera
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 · 4.0L 8-cyl turbo · 8-speed automatic · 18 MPG
The 2025 Porsche Panamera is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,821 a year to fuel (21 MPG), versus $3,292 for the 2025 Audi S8 Hybrid (18 MPG). That's roughly $470 a year, or about $2,351 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
- Audi S8 Hybrid
- Porsche Panamera
Side by side
| Audi S8 Hybrid | Porsche Panamera | |
|---|---|---|
| $3,292 | Your annual fuel cost | $2,821 |
| 18 MPG | Combined efficiency | 21 MPG |
| 15 MPG | City | 18 MPG |
| 24 MPG | Highway | 25 MPG |
| 111 cu ft | Passenger volume | 98 cu ft |
| 13 cu ft | Cargo volume | 27 cu ft |
| 502 g/mi | Tailpipe CO₂ (g/mi) | 431 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 2.9L 6-cyl turbo |
| 8-speed automatic | Transmission | 8-speed dual-clutch |
| AWD | 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.
Audi S8 Hybrid vs Porsche Panamera across model years
- Audi S8 Hybrid
- Porsche Panamera
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 Audi S8 Hybrid has more passenger space (111 vs. 98 cu ft); the Porsche Panamera has more cargo space (27 vs. 13 cu ft).
Among 25 2025 large cars, the Audi S8 Hybrid ranks 22nd and the Porsche Panamera 19th for lowest fuel cost.
The powertrains differ: the Audi S8 Hybrid is a full hybrid, while the Porsche Panamera is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2025 Audi S8 Hybrid or the 2025 Porsche Panamera?
Measured by cost to drive, the Porsche Panamera. The Audi S8 Hybrid is rated 18 MPG combined and the Porsche Panamera 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Audi S8 Hybrid vs. the Porsche Panamera per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,292 for the Audi S8 Hybrid and $2,821 for the Porsche Panamera.
Which has more cargo space?
The Porsche Panamera, with 27 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
Audi S8 Hybrid vs Porsche Panamera in other years
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