2019 head-to-head · Compact Car
2019 Mazda 3 vs STI S209
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 2.5L 4-cyl turbo · 6-speed manual · 17 MPG
The 2019 Mazda 3 is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, it costs about $1,550 a year to fuel (30 MPG), versus $3,485 for the 2019 STI S209 (17 MPG). That's roughly $1,935 a year, or about $9,676 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 3
- STI S209
Side by side
| Mazda 3 | STI S209 | |
|---|---|---|
| $1,550 | Your annual fuel cost | $3,485 |
| 30 MPG | Combined efficiency | 17 MPG |
| 26 MPG | City | 15 MPG |
| 35 MPG | Highway | 21 MPG |
| 93 cu ft | Passenger volume | 97 cu ft |
| 13 cu ft | Cargo volume | 12 cu ft |
| 299 g/mi | Tailpipe CO₂ (g/mi) | 518 g/mi |
| 7/10 | EPA fuel economy score | 3/10 |
| 7/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Premium gasoline |
| 2.5L 4-cyl | Engine / motor | 2.5L 4-cyl turbo |
| 6-speed automatic | Transmission | 6-speed manual |
| 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.
Mazda 3 vs STI S209 across model years
- Mazda 3
- STI S209
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 STI S209 has more passenger space (97 vs. 93 cu ft); the Mazda 3 has more cargo space (13 vs. 12 cu ft).
Among 43 2019 compact cars, the Mazda 3 ranks 19th and the STI S209 42nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2019 Mazda 3 or the 2019 STI S209?
Measured by cost to drive, the Mazda 3. The Mazda 3 is rated 30 MPG combined and the STI S209 17 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2019 Mazda 3 vs. the STI S209 per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.95/gal premium gas, about $1,550 for the Mazda 3 and $3,485 for the STI S209.
Which has more cargo space?
The Mazda 3, with 13 cu ft of luggage volume versus 12 cu ft (EPA interior volume index).
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