2027 head-to-head · Large Car
2027 Audi A8 Hybrid vs Mercedes-Benz S-Class
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 · 22 MPG
AWD · 6.0L 12-cyl turbo · 9-speed automatic · 14 MPG
The 2027 Audi A8 Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,693 a year to fuel (22 MPG), versus $4,232 for the 2027 Mercedes-Benz S-Class (14 MPG). That's roughly $1,539 a year, or about $7,695 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 A8 Hybrid
- Mercedes-Benz S-Class
Side by side
| Audi A8 Hybrid | Mercedes-Benz S-Class | |
|---|---|---|
| $2,693 | Your annual fuel cost | $4,232 |
| 22 MPG | Combined efficiency | 14 MPG |
| 19 MPG | City | 12 MPG |
| 27 MPG | Highway | 20 MPG |
| 111 cu ft | Passenger volume | 115 cu ft |
| 13 cu ft | Cargo volume | 12 cu ft |
| 414 g/mi | Tailpipe CO₂ (g/mi) | 610 g/mi |
| 4/10 | EPA fuel economy score | 2/10 |
| 4/10 | EPA greenhouse gas score | 2/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 6.0L 12-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| 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.
Audi A8 Hybrid vs Mercedes-Benz S-Class across model years
- Audi A8 Hybrid
- Mercedes-Benz S-Class
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 Mercedes-Benz S-Class has more passenger space (115 vs. 111 cu ft); the Audi A8 Hybrid has more cargo space (13 vs. 12 cu ft).
Among 16 2027 large cars, the Audi A8 Hybrid ranks 12th and the Mercedes-Benz S-Class 14th for lowest fuel cost.
The powertrains differ: the Audi A8 Hybrid is a full hybrid, while the Mercedes-Benz S-Class is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2027 Audi A8 Hybrid or the 2027 Mercedes-Benz S-Class?
Measured by cost to drive, the Audi A8 Hybrid. The Audi A8 Hybrid is rated 22 MPG combined and the Mercedes-Benz S-Class 14 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Audi A8 Hybrid vs. the Mercedes-Benz S-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,693 for the Audi A8 Hybrid and $4,232 for the Mercedes-Benz S-Class.
Which has more cargo space?
The Audi A8 Hybrid, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Audi A8 Hybrid vs Mercedes-Benz S-Class in other years
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