Hyundai Sonata w/Stop-Start MPG by year — every rating on record
The Hyundai Sonata w/Stop-Start has a combined EPA fuel economy rating for 2 model years, from 2026 to 2027. Across those years its best rated version returned 32 mpg (2026) and its thirstiest returned 31 mpg (2027). The EPA record holds 2 configurations for this nameplate, most recently a Large Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2026 | 1 | 32 mpg | 32 mpg | #34 of 60 (44th pct) | Front-Wheel Drive | Regular | Large Cars |
| 2027 | 1 | 31 mpg | 31 mpg | #18 of 35 (50th pct) | Front-Wheel Drive | Regular | Large Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Hyundai Sonata w/Stop-Start placed highest in 2027 at #18 of 35, and lowest in 2026 at #34 of 60. It spent 1 of its 2 ranked years in the top half of its class.
Every configuration on record
All 2 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2027 | 2.5L 4-cyl Front-Wheel Drive Automatic (S8) Regular | SIDI & PFI, start-stop | 26 | 38 | 31 | 371.0 | 9.6 | $2,000 | 290 | 6/10 |
| 2026 | 2.5L 4-cyl Front-Wheel Drive Automatic (S8) Regular | SIDI & PFI, start-stop | 28 | 38 | 32 | 359.4 | 9.3 | $1,950 | 281 | 6/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2026 → 2027 | 32 → 31 mpg | -1 mpg | 371 gal |
What Sonata w/Stop-Start fuel costs over a year
At the EPA's 11,500 miles a year, the 2027 Hyundai Sonata w/Stop-Start burns 371 to 371 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,113 | $1,113 | $0 |
| $3.50/gal | $1,298 | $1,298 | $0 |
| $4.00/gal | $1,484 | $1,484 | $0 |
EPA’s own estimate for the 2027 model year is $2,000 to $2,000 a year in fuel, or $1,250 less than the average new vehicle over five years.
How it compares with other Large Cars
Across the 305 nameplates EPA classifies as Large Cars, the median best combined rating is 21 mpg. At 31 mpg the Hyundai Sonata w/Stop-Start is 10 mpg better the median, which is worth about $618 a year at $3.50 a gallon.
- All Large Cars rankings — every nameplate in the class, best to worst.
Other Hyundai nameplates
Every Hyundai model compared → — all nameplates ranked by best combined rating, with what each one costs a year.