2023 head-to-head · Midsize & Large SUV
2023 Audi Q8 vs Mercedes-Benz GLS-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 · 3.0L 6-cyl turbo · 8-speed automatic · 20 MPG
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2023 Audi Q8 (20 MPG) costs about $2,962 a year to fuel and the 2023 Mercedes-Benz GLS-Class Hybrid (20 MPG) about $2,962.
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 Q8
- Mercedes-Benz GLS-Class Hybrid
Side by side
| Audi Q8 | Mercedes-Benz GLS-Class Hybrid | |
|---|---|---|
| $2,962 | Your annual fuel cost | $2,962 |
| 20 MPG | Combined efficiency | 20 MPG |
| 18 MPG | City | 18 MPG |
| 23 MPG | Highway | 23 MPG |
| 439 g/mi | Tailpipe CO₂ (g/mi) | 433 g/mi |
| 4/10 | EPA fuel economy score | 4/10 |
| 4/10 | EPA greenhouse gas score | 4/10 |
| Hybrid | Powertrain | Hybrid |
| Premium gasoline | Fuel | Premium gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-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 Q8 vs Mercedes-Benz GLS-Class Hybrid across model years
- Audi Q8
- Mercedes-Benz GLS-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 73 2023 midsize & large SUVs, the Audi Q8 ranks 54th and the Mercedes-Benz GLS-Class Hybrid 53rd for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2023 Audi Q8 vs. the Mercedes-Benz GLS-Class Hybrid per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,962 for the Audi Q8 and $2,962 for the Mercedes-Benz GLS-Class Hybrid.
Audi Q8 vs Mercedes-Benz GLS-Class Hybrid in other years
More 2023 comparisons
Audi Q8 vs…
Or compare the 2023 Audi Q8 with anything else: