2019 head-to-head · Small SUV
2019 Fiat 500 vs GMC Terrain Diesel
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 and $3.70/gal diesel fuel, the most efficient 2019 Fiat 500 (26 MPG) costs about $1,788 a year to fuel and the 2019 GMC Terrain Diesel (32 MPG) about $1,734.
Your numbers
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Fuel cost over 10 years
- Fiat 500
- GMC Terrain Diesel
Side by side
| Fiat 500 | GMC Terrain Diesel | |
|---|---|---|
| $1,788 | Your annual fuel cost | $1,734 |
| 26 MPG | Combined efficiency | 32 MPG |
| 24 MPG | City | 28 MPG |
| 30 MPG | Highway | 38 MPG |
| — | Passenger volume | 90 cu ft |
| — | Cargo volume | 13 cu ft |
| 342 g/mi | Tailpipe CO₂ (g/mi) | 319 g/mi |
| 5/10 | EPA fuel economy score | 7/10 |
| 5/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Diesel |
| Regular gasoline | Fuel | Diesel |
| 1.3L 4-cyl turbo | Engine / motor | 1.6L 4-cyl turbo |
| 9-speed automatic | Transmission | 6-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.
Fiat 500 vs GMC Terrain Diesel across model years
- Fiat 500
- GMC Terrain Diesel
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 76 2019 small SUVs, the Fiat 500 ranks 31st and the GMC Terrain Diesel 26th for lowest fuel cost.
The powertrains differ: the Fiat 500 is a conventional gas model, while the GMC Terrain Diesel is a diesel.
Frequently asked questions
Which is more fuel-efficient, the 2019 Fiat 500 or the 2019 GMC Terrain Diesel?
Measured by cost to drive, the GMC Terrain Diesel. The Fiat 500 is rated 26 MPG combined and the GMC Terrain Diesel 32 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2019 Fiat 500 vs. the GMC Terrain Diesel per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, about $1,788 for the Fiat 500 and $1,734 for the GMC Terrain Diesel.
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