Buick models ranked by fuel economy, 2026
For model year 2026 the data rates 4 Buick models. The most efficient is Buick Encore at 30 MPG combined and the least efficient is Buick Enclave at 22; the middle of the list sits at 27.5.
That is a spread of 8 MPG from first to last; the leader's rating is 1.4 times the last model's.
The largest step between neighbouring ranks comes after Buick Envista, 2nd: the next model, Buick Envision, is 5 MPG lower.
On annual fuel cost under the file's assumptions, Buick Encore is lowest at $2,250 and Buick Enclave highest at $3,050; the median is $2,475.
By vehicle class: Small SUVs (2), Standard SUVs (1), Station wagons (1).
All 4 models ranked
Annual fuel cost in the file is based on 15,000 miles a year, 55% city and 45% highway driving, and the fuel prices that fueleconomy.gov published at the time of the release (the same prices for every model year).
| Rank | Model | Vehicle class | Powertrain | Combined MPG | Annual fuel cost | CO2 g/mile | Versions |
|---|---|---|---|---|---|---|---|
| 1 | Buick Encore | Small SUVs | Gasoline | 30 | $2,250 | 297 | 3 |
| 2 | Buick Envista | Station wagons | Gasoline | 30 | $2,250 | 297 | 2 |
| 3 | Buick Envision | Small SUVs | Gasoline | 25 | $2,700 | 361 | 1 |
| 4 | Buick Enclave | Standard SUVs | Gasoline | 22 | $3,050 | 404 | 2 |
Each model is shown with its most efficient rated version. How the figures are prepared: methods and data.