2025 head-to-head · Midsize Car
2025 Alfa Romeo Giulia vs Audi S6 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 · 2.9L 6-cyl · 8-speed automatic · 22 MPG
The 2025 Alfa Romeo Giulia is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,194 a year to fuel (27 MPG), versus $2,693 for the 2025 Audi S6 Hybrid (22 MPG). That's roughly $499 a year, or about $2,494 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
- Alfa Romeo Giulia
- Audi S6 Hybrid
Side by side
| Alfa Romeo Giulia | Audi S6 Hybrid | |
|---|---|---|
| $2,194 | Your annual fuel cost | $2,693 |
| 27 MPG | Combined efficiency | 22 MPG |
| 24 MPG | City | 19 MPG |
| 33 MPG | Highway | 27 MPG |
| 100 cu ft | Passenger volume | 99 cu ft |
| 12 cu ft | Cargo volume | 14 cu ft |
| 330 g/mi | Tailpipe CO₂ (g/mi) | 408 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.9L 6-cyl |
| 8-speed automatic | Transmission | 8-speed automatic |
| RWD | 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.
Alfa Romeo Giulia vs Audi S6 Hybrid across model years
- Alfa Romeo Giulia
- Audi S6 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 Audi S6 Hybrid has more cargo space (14 vs. 12 cu ft).
Among 42 2025 midsize cars, the Alfa Romeo Giulia ranks 28th and the Audi S6 Hybrid 38th for lowest fuel cost.
The powertrains differ: the Alfa Romeo Giulia is a conventional gas model, while the Audi S6 Hybrid is a full hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2025 Alfa Romeo Giulia or the 2025 Audi S6 Hybrid?
Measured by cost to drive, the Alfa Romeo Giulia. The Alfa Romeo Giulia is rated 27 MPG combined and the Audi S6 Hybrid 22 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Alfa Romeo Giulia vs. the Audi S6 Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,194 for the Alfa Romeo Giulia and $2,693 for the Audi S6 Hybrid.
Which has more cargo space?
The Audi S6 Hybrid, with 14 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
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