2018 head-to-head · Large Car
2018 Buick Regal vs Chevrolet Impala
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2018 Chevrolet Impala is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,860 a year to fuel (25 MPG), versus $2,114 for the 2018 Buick Regal (22 MPG). That's roughly $254 a year, or about $1,268 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
- Buick Regal
- Chevrolet Impala
Side by side
| Buick Regal | Chevrolet Impala | |
|---|---|---|
| $2,114 | Your annual fuel cost | $1,860 |
| 22 MPG | Combined efficiency | 25 MPG |
| 19 MPG | City | 22 MPG |
| 27 MPG | Highway | 30 MPG |
| 98 cu ft | Passenger volume | 105 cu ft |
| 25 cu ft | Cargo volume | 19 cu ft |
| 403 g/mi | Tailpipe CO₂ (g/mi) | 360 g/mi |
| 4/10 | EPA fuel economy score | 5/10 |
| 4/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 3.6L 6-cyl | Engine / motor | 2.5L 4-cyl |
| 9-speed automatic | Transmission | 6-speed automatic |
| AWD | 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.
Buick Regal vs Chevrolet Impala across model years
- Buick Regal
- Chevrolet Impala
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
Per EPA interior volume figures, the Chevrolet Impala has more passenger space (105 vs. 98 cu ft); the Buick Regal has more cargo space (25 vs. 19 cu ft).
Among 31 2018 large cars, the Buick Regal ranks 14th and the Chevrolet Impala 9th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Buick Regal or the 2018 Chevrolet Impala?
Measured by cost to drive, the Chevrolet Impala. The Buick Regal is rated 22 MPG combined and the Chevrolet Impala 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Buick Regal vs. the Chevrolet Impala per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,114 for the Buick Regal and $1,860 for the Chevrolet Impala.
Which has more cargo space?
The Buick Regal, with 25 cu ft of luggage volume versus 19 cu ft (EPA interior volume index).
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