2020 head-to-head · Large Car
2020 Chevrolet Impala vs Subaru Legacy
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 2020 Subaru Legacy is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,550 a year to fuel (30 MPG), versus $2,114 for the 2020 Chevrolet Impala (22 MPG). That's roughly $564 a year, or about $2,818 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
- Chevrolet Impala
- Subaru Legacy
Side by side
| Chevrolet Impala | Subaru Legacy | |
|---|---|---|
| $2,114 | Your annual fuel cost | $1,550 |
| 22 MPG | Combined efficiency | 30 MPG |
| 19 MPG | City | 27 MPG |
| 28 MPG | Highway | 35 MPG |
| 105 cu ft | Passenger volume | 105 cu ft |
| 19 cu ft | Cargo volume | 15 cu ft |
| 406 g/mi | Tailpipe CO₂ (g/mi) | 295 g/mi |
| 4/10 | EPA fuel economy score | 7/10 |
| 4/10 | EPA greenhouse gas score | 7/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 3.6L 6-cyl | Engine / motor | 2.5L 4-cyl |
| 6-speed automatic | Transmission | CVT |
| FWD | Drivetrain | AWD |
✓ 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.
Chevrolet Impala vs Subaru Legacy across model years
- Chevrolet Impala
- Subaru Legacy
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 cargo space (19 vs. 15 cu ft).
Among 32 2020 large cars, the Chevrolet Impala ranks 14th and the Subaru Legacy 9th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2020 Chevrolet Impala or the 2020 Subaru Legacy?
Measured by cost to drive, the Subaru Legacy. The Chevrolet Impala is rated 22 MPG combined and the Subaru Legacy 30 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Chevrolet Impala vs. the Subaru Legacy per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,114 for the Chevrolet Impala and $1,550 for the Subaru Legacy.
Which has more cargo space?
The Chevrolet Impala, with 19 cu ft of luggage volume versus 15 cu ft (EPA interior volume index).
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