The 2026 GMC Terrain keeps running costs genuinely manageable, making it a smart choice for your daily commute through St. John's. Enjoy fuel economy rated as low as 8.8 L/100 km combined on the Elevation FWD trim and a competitive 9.3–9.5 L/100 km combined on AWD trims, thanks to the 1.5L turbocharged four-cylinder engine available across all four trims, starting from $36,199. Continue reading with the experts at Terra Nova Buick GMC as we dive further into the 2026 GMC Terrain's fuel economy.
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The Elevation FWD's 8.8 L/100km combined is the most efficient configuration and its smaller 56L tank still delivers an estimated 636 kilometres of range, the longest of any Terrain trim.
The AWD trims all carry a larger 59 litre tank, which nearly offsets their slightly higher consumption. Stepping up to the AT4 or Denali doesn't cost additional fuel economy over the Elevation AWD, making either premium trim a straightforward choice for buyers who want more features without paying more for gas.
| Trim | Drive | City | Highway | Combined | Tank | Est. Range |
|---|---|---|---|---|---|---|
| Elevation FWD | FWD | 9.2 L/100km | 8.3 L/100km | 8.8 L/100km | 56L | ~636 km |
| Elevation AWD | AWD | 9.9 L/100km | 8.5 L/100km | 9.3 L/100km | 59L | ~632 km |
| AT4 AWD | AWD | 9.9 L/100km | 8.9 L/100km | 9.5 L/100km | 59L | ~621 km |
| Denali AWD | AWD | 9.9 L/100km | 8.9 L/100km | 9.5 L/100km | 59L | ~621 km |
The fuel economy difference between FWD and AWD on the Terrain is modest, approximately 0.5 L/100 km combined on the Elevation. If you’re a Newfie who frequently contends with icy roads, wet conditions, and unpredictable weather all year round, the AWD traction offers meaningful real-world benefits for a small efficiency trade-off. The Elevation AWD, at $38,499, represents strong value for entry into AWD capability without stepping up to AT4 or Denali territory.
All trims run on regular unleaded fuel and feature a turbocharged engine that delivers its torque early in the rev range, making for responsive, confident driving in city traffic without burning excess fuel to get there.
Want to buy the 2026 GMC Terrain? Visit Terra Nova GMC Buick at St. John’s, Newfoundland and Labrador, offering you a comprehensive inventory of new and used vehicles from GMC, as well as Buick. If you need more information about the Buick Envista, feel free to reach out to our product specialists at 709-364-4130.