2018 head-to-head · Subcompact Car
2018 Audi A5 vs Mercedes-Benz C-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.
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.95/gal premium gas, the most efficient 2018 Audi A5 (27 MPG) costs about $2,194 a year to fuel and the 2018 Mercedes-Benz C-Class (27 MPG) about $2,194.
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 A5
- Mercedes-Benz C-Class
Side by side
| Audi A5 | Mercedes-Benz C-Class | |
|---|---|---|
| $2,194 | Your annual fuel cost | $2,194 |
| 27 MPG | Combined efficiency | 27 MPG |
| 24 MPG | City | 24 MPG |
| 34 MPG | Highway | 33 MPG |
| 81 cu ft | Passenger volume | 90 cu ft |
| 10 cu ft | Cargo volume | 13 cu ft |
| 327 g/mi | Tailpipe CO₂ (g/mi) | 324 g/mi |
| 6/10 | EPA fuel economy score | 6/10 |
| 6/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.0L 4-cyl turbo |
| 7-speed dual-clutch | Transmission | 9-speed automatic |
| AWD | 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.
Audi A5 vs Mercedes-Benz C-Class across model years
- Audi A5
- Mercedes-Benz C-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 C-Class has more passenger space (90 vs. 81 cu ft); the Mercedes-Benz C-Class has more cargo space (13 vs. 10 cu ft).
Among 44 2018 subcompact cars, the Audi A5 ranks 18th and the Mercedes-Benz C-Class 17th for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2018 Audi A5 vs. the Mercedes-Benz C-Class per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,194 for the Audi A5 and $2,194 for the Mercedes-Benz C-Class.
Which has more cargo space?
The Mercedes-Benz C-Class, with 13 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
Audi A5 vs Mercedes-Benz C-Class in other years
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