2018 head-to-head · Compact Car
2018 Chevrolet Sonic vs Mazda 3
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 $3.10/gal regular gas, the most efficient 2018 Chevrolet Sonic (32 MPG) costs about $1,453 a year to fuel and the 2018 Mazda 3 (32 MPG) about $1,453.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Chevrolet Sonic
- Mazda 3
Side by side
| Chevrolet Sonic | Mazda 3 | |
|---|---|---|
| $1,453 | Your annual fuel cost | $1,453 |
| 32 MPG | Combined efficiency | 32 MPG |
| 28 MPG | City | 28 MPG |
| 37 MPG | Highway | 37 MPG |
| 91 cu ft | Passenger volume | 96 cu ft |
| 12 cu ft | Cargo volume | 22 cu ft |
| 280 g/mi | Tailpipe CO₂ (g/mi) | 280 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 7/10 | EPA greenhouse gas score | 7/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 1.4L 4-cyl turbo | Engine / motor | 2.0L 4-cyl |
| 6-speed manual | Transmission | 6-speed automatic |
| FWD | Drivetrain | FWD |
✓ 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.
Chevrolet Sonic vs Mazda 3 across model years
- Chevrolet Sonic
- Mazda 3
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 Mazda 3 has more passenger space (96 vs. 91 cu ft); the Mazda 3 has more cargo space (22 vs. 12 cu ft).
Among 44 2018 compact cars, the Chevrolet Sonic ranks 17th and the Mazda 3 16th for lowest fuel cost.
Frequently asked questions
How much does it cost to fuel the 2018 Chevrolet Sonic vs. the Mazda 3 per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,453 for the Chevrolet Sonic and $1,453 for the Mazda 3.
Which has more cargo space?
The Mazda 3, with 22 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
Chevrolet Sonic vs Mazda 3 in other years
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