Qualifying Hyundai models for the CARS program (with combined MPG) are: Accent (29 MPG), Elantra (28 MPG), Elantra Touring (26 MPG), Genesis Coupe 2.0T (24 MPG), Santa Fe (20 MPG), Sonata (25 MPG), Tucson (22 MPG), and Veracruz (18 MPG).
For a trade-in car to qualify, the car must be built in 1984 or later (25 years or less), gets 18 MPG or less in combined city/highway driving as per the EPA, is in drivable condition, and is registered and insured under the driver's name for at least a year.
New vehicles eligible for purchase or minimum five (5) year lease must get at least 22 MPG in combined city/highway driving as per the EPA for cars (18 MPG in combined city/highway driving for light-duty trucks), and not exceed $45,000 in MSRP. The credit amount one qualifies for depends on the difference of combined MPG between the old, trade-in car and the new, eligible car. A 10 MPG improvement for cars or 5 MPG improvement for light trucks qualifies for the maximum $4,500 credit.For more information, visit Hyundai's official information page at the link below.
[Source: Hyundai Motor America]