The most fuel-efficient GMC model is the Terrain, with up to 28 highway mpg.1 The GMC Sierra EV, meanwhile, offers an electric range up to 478 miles.1 South Texas drivers count on Powell Watson Motors for a GMC lineup that pairs rugged capability with everyday efficiency. From the nimble Terrain and family-ready Acadia to the hardworking Sierra 1500 and Yukon, the GMC range gives Laredo drivers dependable options for daily commutes and longer hauls across the region. Living in town or driving in from farther out, you'll find a GMC built to match how you get around.
What Are the 2026 GMC Fuel Economy Ratings?
The new GMC lineup spans capable SUVs and trucks, each striking its own balance between size, strength and highway efficiency. The Terrain and Acadia lead the way for shoppers who want everyday economy, while the Canyon, Sierra 1500 and Yukon add muscle for bigger jobs. Review the 2026 GMC highway mpg ratings below to see how each GMC compares.
Max Highway MPG 1
- 2026 GMC Terrain: 28
- 2026 GMC Acadia: 26
- 2026 GMC Canyon: 23
- 2026 GMC Sierra 1500: 21
- 2026 GMC Yukon: 20
Which GMC EV Has the Best Range?
For drivers ready to move beyond the pump, the GMC electric lineup delivers bold capability paired with impressive range. The Sierra EV, HUMMER EV Pickup and HUMMER EV SUV each bring a different mix of power and distance for South Texas roads. Review the 2026 GMC EV ranges below to find the electric GMC that fits your routine.
Max Electric Range (mi.) 1
- 2026 GMC Sierra EV: 478
- 2026 GMC HUMMER EV Pickup: 363
- 2026 GMC HUMMER EV SUV: 319
Buy a Fuel-Efficient GMC Near Corpus Christi, TX
Ready to find a GMC near Corpus Christi that keeps pace with your budget and your drive? Browse our new GMC inventory to compare trims and features, then contact Powell Watson Motors to schedule a test-drive. If you're near Corpus Christi or Rio Bravo, you're always welcome to make the trip to Laredo and discover why so many South Texas shoppers choose us.
1 Based on 2026 EPA mileage/highway estimates and driving range ratings. Use for comparison purposes only. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery age/condition, and other factors. For additional information about EPA ratings, visit https://www.fueleconomy.gov/feg/label/learn-more-PHEV-label.shtml.
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Powell Watson Motors GMC Fuel Efficiency FAQs
Which GMC has the best gas mileage in Laredo, TX?
The 2026 GMC Terrain leads our gas lineup with up to 28 highway MPG, followed closely by the Acadia at 26. Both make smart, efficient picks for daily commutes around Laredo. Visit Powell Watson Motors to compare trims in person.
Which GMC EV offers the longest driving range?
The 2026 GMC Sierra EV tops the electric lineup with up to 478 miles of range, while the HUMMER EV Pickup delivers 363 miles and the HUMMER EV SUV reaches 319. Each brings bold capability suited to South Texas roads.
Are GMC trucks fuel efficient at Powell Watson Motors?
Yes, the 2026 GMC Sierra 1500 earns up to 21 highway mpg and the Canyon reaches 23, balancing hardworking strength with everyday economy. Our team at Powell Watson Motors can help match a truck to how you drive.
Can I buy a fuel-efficient GMC near Corpus Christi, TX?
Absolutely: shoppers from Corpus Christi, Zapata and Hidalgo are always welcome to make the trip to Powell Watson Motors. Browse our new GMC inventory and contact our team to schedule a test-drive.
How does highway MPG vary across the GMC lineup?
The GMC lineup spans capable SUVs and trucks, from the efficient Terrain and Acadia to the muscular Sierra 1500 and Yukon, each striking its own balance of size, strength and highway efficiency. Review the ratings and let us help you find the right fit.