2018 head-to-head · Small SUV
2018 GMC Terrain Diesel vs Kia Sportage
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 $3.70/gal diesel fuel and $3.10/gal regular gas, the most efficient 2018 GMC Terrain Diesel (32 MPG) costs about $1,734 a year to fuel and the 2018 Kia Sportage (26 MPG) about $1,788.
Your numbers
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Fuel cost over 10 years
- GMC Terrain Diesel
- Kia Sportage
Side by side
| GMC Terrain Diesel | Kia Sportage | |
|---|---|---|
| $1,734 | Your annual fuel cost | $1,788 |
| 32 MPG | Combined efficiency | 26 MPG |
| 28 MPG | City | 23 MPG |
| 39 MPG | Highway | 30 MPG |
| 104 cu ft | Passenger volume | — |
| 30 cu ft | Cargo volume | — |
| 319 g/mi | Tailpipe CO₂ (g/mi) | 351 g/mi |
| 7/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Diesel | Powertrain | Gas |
| Diesel | Fuel | Regular gasoline |
| 1.6L 4-cyl turbo | Engine / motor | 2.4L 4-cyl |
| 6-speed automatic | 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.
GMC Terrain Diesel vs Kia Sportage across model years
- GMC Terrain Diesel
- Kia Sportage
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 68 2018 small SUVs, the GMC Terrain Diesel ranks 22nd and the Kia Sportage 23rd for lowest fuel cost.
The powertrains differ: the GMC Terrain Diesel is a diesel, while the Kia Sportage is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2018 GMC Terrain Diesel or the 2018 Kia Sportage?
Measured by cost to drive, the GMC Terrain Diesel. The GMC Terrain Diesel is rated 32 MPG combined and the Kia Sportage 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 GMC Terrain Diesel vs. the Kia Sportage per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, about $1,734 for the GMC Terrain Diesel and $1,788 for the Kia Sportage.
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