2026 head-to-head · Small SUV
2026 GMC Terrain vs Mazda CX-5
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
4WD · 2.5L 4-cyl · 6-speed automatic · 26 MPG
The 2026 GMC Terrain is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,722 a year to fuel (27 MPG), versus $1,788 for the 2026 Mazda CX-5 (26 MPG). That's roughly $66 a year, or about $331 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- GMC Terrain
- Mazda CX-5
Side by side
| GMC Terrain | Mazda CX-5 | |
|---|---|---|
| $1,722 | Your annual fuel cost | $1,788 |
| 27 MPG | Combined efficiency | 26 MPG |
| 26 MPG | City | 24 MPG |
| 28 MPG | Highway | 30 MPG |
| 329 g/mi | Tailpipe CO₂ (g/mi) | 339 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 1.5L 4-cyl turbo | Engine / motor | 2.5L 4-cyl |
| CVT | Transmission | 6-speed automatic |
| FWD | Drivetrain | 4WD |
✓ 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 vs Mazda CX-5 across model years
- GMC Terrain
- Mazda CX-5
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 114 2026 small SUVs, the GMC Terrain ranks 65th and the Mazda CX-5 72nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 GMC Terrain or the 2026 Mazda CX-5?
Measured by cost to drive, the GMC Terrain. The GMC Terrain is rated 27 MPG combined and the Mazda CX-5 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 GMC Terrain vs. the Mazda CX-5 per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,722 for the GMC Terrain and $1,788 for the Mazda CX-5.
GMC Terrain vs Mazda CX-5 in other years
More 2026 comparisons
GMC Terrain vs…
Or compare the 2026 GMC Terrain with anything else: