2020 head-to-head · Midsize Car
2020 Mazda 6 vs Toyota Avalon
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 Mazda 6 is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,603 a year to fuel (29 MPG), versus $1,788 for the 2020 Toyota Avalon (26 MPG). That's roughly $185 a year, or about $925 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
- Mazda 6
- Toyota Avalon
Side by side
| Mazda 6 | Toyota Avalon | |
|---|---|---|
| $1,603 | Your annual fuel cost | $1,788 |
| 29 MPG | Combined efficiency | 26 MPG |
| 26 MPG | City | 22 MPG |
| 35 MPG | Highway | 32 MPG |
| 100 cu ft | Passenger volume | 103 cu ft |
| 14 cu ft | Cargo volume | 16 cu ft |
| 302 g/mi | Tailpipe CO₂ (g/mi) | 341 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 6/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 2.5L 4-cyl | Engine / motor | 3.5L 6-cyl |
| 6-speed automatic | Transmission | 8-speed automatic |
| FWD | 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.
Mazda 6 vs Toyota Avalon across model years
- Mazda 6
- Toyota Avalon
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 Toyota Avalon has more cargo space (16 vs. 14 cu ft).
Among 64 2020 midsize cars, the Mazda 6 ranks 28th and the Toyota Avalon 34th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2020 Mazda 6 or the 2020 Toyota Avalon?
Measured by cost to drive, the Mazda 6. The Mazda 6 is rated 29 MPG combined and the Toyota Avalon 26 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Mazda 6 vs. the Toyota Avalon per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,603 for the Mazda 6 and $1,788 for the Toyota Avalon.
Which has more cargo space?
The Toyota Avalon, with 16 cu ft of luggage volume versus 14 cu ft (EPA interior volume index).
Mazda 6 vs Toyota Avalon in other years
More 2020 comparisons
Mazda 6 vs…
Or compare the 2020 Mazda 6 with anything else: