Under the FMVSS 25-year exemption, a car can be imported once it is 25 years old, counted from its month of manufacture. Pick a year to see which model codes reach that age.
Preliminary estimate
Some of the import rules and fees for the United States have not yet been confirmed by an official source or a customs broker. Treat this as a rough range and confirm with a licensed customs broker in the United States before you buy.
Production months are approximate. What counts is the manufacture date of the individual car — check it on the export certificate before you buy.