2023 head-to-head · Midsize & Large SUV
2023 Audi RS Q8 vs Mercedes-Benz G-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 · 4.0L 8-cyl turbo · 8-speed automatic · 16 MPG
The 2023 Audi RS Q8 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $3,703 a year to fuel (16 MPG), versus $4,232 for the 2023 Mercedes-Benz G-Class (14 MPG). That's roughly $529 a year, or about $2,645 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 RS Q8
- Mercedes-Benz G-Class
Side by side
| Audi RS Q8 | Mercedes-Benz G-Class | |
|---|---|---|
| $3,703 | Your annual fuel cost | $4,232 |
| 16 MPG | Combined efficiency | 14 MPG |
| 13 MPG | City | 13 MPG |
| 20 MPG | Highway | 16 MPG |
| 562 g/mi | Tailpipe CO₂ (g/mi) | 617 g/mi |
| 3/10 | EPA fuel economy score | 2/10 |
| 3/10 | EPA greenhouse gas score | 2/10 |
| Hybrid | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 4.0L 8-cyl turbo | Engine / motor | 4.0L 8-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| AWD | Drivetrain | 4WD |
✓ 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 RS Q8 vs Mercedes-Benz G-Class across model years
- Audi RS Q8
- Mercedes-Benz G-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
Among 73 2023 midsize & large SUVs, the Audi RS Q8 ranks 70th and the Mercedes-Benz G-Class 73rd for lowest fuel cost.
The powertrains differ: the Audi RS Q8 is a full hybrid, while the Mercedes-Benz G-Class is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2023 Audi RS Q8 or the 2023 Mercedes-Benz G-Class?
Measured by cost to drive, the Audi RS Q8. The Audi RS Q8 is rated 16 MPG combined and the Mercedes-Benz G-Class 14 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2023 Audi RS Q8 vs. the Mercedes-Benz G-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Audi RS Q8 and $4,232 for the Mercedes-Benz G-Class.
Audi RS Q8 vs Mercedes-Benz G-Class in other years
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