The result in one minute
Among these 15 EPA configurations, combined economy ranges from 25 to 38 US MPG. The configuration-weighted median is 27 MPG. At an illustrative 12,000 miles a year and $3.50 per gallon, the modeled annual fuel bill spans $1,105 to $1,680: a $575 difference.
What this comparison does—and does not—say
These are regular-gasoline records only; conventional hybrids using regular gasoline are included. EVs, premium-fuel cars, diesel and plug-in hybrids are excluded. Different body styles and capabilities appear together, so the cheapest fuel bill is not a recommendation or a like-for-like vehicle verdict.
Configuration results
| Configuration | US MPG | 12,000 mi/year | 15,000 mi/year |
|---|---|---|---|
| CX-50 4WD Automatic (variable gear ratios) · 4-Wheel Drive · EPA #50010 | 38 | $1,105 | $1,382 |
| 3 4-Door 2WD Automatic (S6) · Front-Wheel Drive · EPA #49256 | 30 | $1,400 | $1,750 |
| 3 4-Door 4WD Automatic (S6) · 4-Wheel Drive · EPA #49257 | 29 | $1,448 | $1,810 |
| 3 5-Door 2WD Automatic (S6) · Front-Wheel Drive · EPA #49291 | 29 | $1,448 | $1,810 |
| 3 5-Door 2WD Manual 6-spd · Front-Wheel Drive · EPA #49290 | 28 | $1,500 | $1,875 |
| 3 5-Door 4WD Automatic (S6) · 4-Wheel Drive · EPA #49292 | 28 | $1,500 | $1,875 |
| 3 4-Door 4WD Automatic (S6) · 4-Wheel Drive · EPA #49258 | 27 | $1,556 | $1,944 |
| CX-30 4WD Automatic (S6) · 4-Wheel Drive · EPA #49863 | 27 | $1,556 | $1,944 |
| 3 5-Door 4WD Automatic (S6) · 4-Wheel Drive · EPA #49293 | 26 | $1,615 | $2,019 |
| CX-50 4WD Automatic (S6) · 4-Wheel Drive · EPA #50011 | 26 | $1,615 | $2,019 |
| CX-5 4WD Automatic (S6) · 4-Wheel Drive · EPA #50290 | 26 | $1,615 | $2,019 |
| CX-30 4WD Automatic (S6) · 4-Wheel Drive · EPA #49864 | 25 | $1,680 | $2,100 |
| CX-90 4WD Automatic (S8) · 4-Wheel Drive · EPA #49926 | 25 | $1,680 | $2,100 |
| CX-50 4WD Automatic (S6) · 4-Wheel Drive · EPA #50009 | 25 | $1,680 | $2,100 |
| CX-70 Hybrid Boost Low Power 4WD Automatic (S8) · 4-Wheel Drive · EPA #50171 | 25 | $1,680 | $2,100 |
Test a different price
Every cost in this table scales directly with your price per gallon. To use $4.20 instead of $3.50, multiply the dollar values by 1.2. To halve annual mileage, halve fuel use and cost. Actual MPG need not match the EPA rating.
Reproduce the analysis
Filter the downloadable records to year 2026, manufacturer Mazda, and Regular Gasoline. Count every distinct EPA ID once; sort combined MPG and take the middle value (or the mean of the two middle values). Cost is miles divided by MPG, multiplied by $3.50. Results are not sales weighted and do not describe the average vehicle on the road.
Download the source-derived CSV · Data licensing and methodology · Compare exact vehicles
Original numeric source: FuelEconomy.gov bulk data. Each linked model page identifies official EPA records. No AI factual inference is used to generate this study.