(KCEN) -- Nearly a million drivers will get some money back after two car makers overestimate their gas mileage.
The advertised high gas mileage for 13 Hyundai and Kia models doesn't match the actual mileage.
That's according to the Environmental Protection Agency.
The EPA launched an audit after about a dozen driver complaints.
Affected car models include some versions of Hyundai's, the Elantra, the Sonata hybrid, the Accent, the Azera, the Genesis, the Tucson, the Veloster and Santa Fe models.
Also included are the Kia Sorrento, Rio, Soul, Sportage and Optima hybrid.
Hyundai and Kia say they will pay owners for the difference in gas mileage.