2021 head-to-head · Small SUV
2021 Acura RDX vs Mercedes-Benz GLC-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.
The 2021 Mercedes-Benz GLC-Class is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel (25 MPG), versus $2,469 for the 2021 Acura RDX (24 MPG). That's roughly $99 a year, or about $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
- Acura RDX
- Mercedes-Benz GLC-Class
Side by side
| Acura RDX | Mercedes-Benz GLC-Class | |
|---|---|---|
| $2,469 | Your annual fuel cost | $2,370 |
| 24 MPG | Combined efficiency | 25 MPG |
| 22 MPG | City | 22 MPG |
| 28 MPG | Highway | 29 MPG |
| 370 g/mi | Tailpipe CO₂ (g/mi) | 360 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 10-speed automatic | Transmission | 9-speed automatic |
| FWD | Drivetrain | RWD |
✓ 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.
Acura RDX vs Mercedes-Benz GLC-Class across model years
- Acura RDX
- Mercedes-Benz GLC-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 92 2021 small SUVs, the Acura RDX ranks 81st and the Mercedes-Benz GLC-Class 79th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2021 Acura RDX or the 2021 Mercedes-Benz GLC-Class?
Measured by cost to drive, the Mercedes-Benz GLC-Class. The Acura RDX is rated 24 MPG combined and the Mercedes-Benz GLC-Class 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2021 Acura RDX vs. the Mercedes-Benz GLC-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,469 for the Acura RDX and $2,370 for the Mercedes-Benz GLC-Class.
Acura RDX vs Mercedes-Benz GLC-Class in other years
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