2027 head-to-head · Midsize & Large SUV
2027 Audi RS Q8 vs Mercedes-Benz G-Class 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 · 4.0L 8-cyl turbo · 8-speed automatic · 16 MPG
4WD · 4.0L 8-cyl turbo · 9-speed automatic · 15 MPG
The 2027 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 $3,950 for the 2027 Mercedes-Benz G-Class Hybrid (15 MPG). That's roughly $247 a year, or about $1,234 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 Hybrid
Side by side
| Audi RS Q8 | Mercedes-Benz G-Class Hybrid | |
|---|---|---|
| $3,703 | Your annual fuel cost | $3,950 |
| 16 MPG | Combined efficiency | 15 MPG |
| 14 MPG | City | 14 MPG |
| 20 MPG | Highway | 16 MPG |
| 547 g/mi | Tailpipe CO₂ (g/mi) | 608 g/mi |
| 3/10 | EPA fuel economy score | 2/10 |
| 3/10 | EPA greenhouse gas score | 2/10 |
| Hybrid | Powertrain | Hybrid |
| 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 Hybrid across model years
- Audi RS Q8
- Mercedes-Benz G-Class 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
Among 58 2027 midsize & large SUVs, the Audi RS Q8 ranks 55th and the Mercedes-Benz G-Class Hybrid 57th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2027 Audi RS Q8 or the 2027 Mercedes-Benz G-Class Hybrid?
Measured by cost to drive, the Audi RS Q8. The Audi RS Q8 is rated 16 MPG combined and the Mercedes-Benz G-Class Hybrid 15 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2027 Audi RS Q8 vs. the Mercedes-Benz G-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $3,703 for the Audi RS Q8 and $3,950 for the Mercedes-Benz G-Class Hybrid.
Audi RS Q8 vs Mercedes-Benz G-Class Hybrid in other years
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