2015 head-to-head · Compact Car
2015 Chevrolet Sonic vs Honda Civic CNG
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 1.8L 4-cyl · 5-speed automatic · 31 MPGe
On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas and $2.90/gge natural gas, the most efficient 2015 Chevrolet Sonic (32 MPG) costs about $1,453 a year to fuel and the 2015 Honda Civic CNG (31 MPGe) about $1,403.
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
- Honda Civic CNG
Side by side
| Chevrolet Sonic | Honda Civic CNG | |
|---|---|---|
| $1,453 | Your annual fuel cost | $1,403 |
| 32 MPG | Combined efficiency | 31 MPGe |
| 28 MPG | City | 27 MPGe |
| 38 MPG | Highway | 38 MPGe |
| 91 cu ft | Passenger volume | 95 cu ft |
| 12 cu ft | Cargo volume | 6 cu ft |
| 276 g/mi | Tailpipe CO₂ (g/mi) | 218 g/mi |
| 8/10 | EPA fuel economy score | 8/10 |
| 8/10 | EPA greenhouse gas score | 9/10 |
| Gas | Powertrain | Natural gas |
| Regular gasoline | Fuel | Natural gas (CNG) |
| 1.4L 4-cyl turbo | Engine / motor | 1.8L 4-cyl |
| 6-speed manual | Transmission | 5-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 Honda Civic CNG across model years
- Chevrolet Sonic
- Honda Civic CNG
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 Honda Civic CNG has more passenger space (95 vs. 91 cu ft); the Chevrolet Sonic has more cargo space (12 vs. 6 cu ft).
Among 52 2015 compact cars, the Chevrolet Sonic ranks 15th and the Honda Civic CNG 12th for lowest fuel cost.
The powertrains differ: the Chevrolet Sonic is a conventional gas model, while the Honda Civic CNG is a natural-gas vehicle.
Frequently asked questions
Which is more fuel-efficient, the 2015 Chevrolet Sonic or the 2015 Honda Civic CNG?
Measured by cost to drive, the Honda Civic CNG. The Chevrolet Sonic is rated 32 MPG combined and the Honda Civic CNG 31 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Chevrolet Sonic vs. the Honda Civic CNG per year?
At 15,000 miles a year with $3.10/gal regular gas and $2.90/gge natural gas, about $1,453 for the Chevrolet Sonic and $1,403 for the Honda Civic CNG.
Which has more cargo space?
The Chevrolet Sonic, with 12 cu ft of luggage volume versus 6 cu ft (EPA interior volume index).
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