Ala. Code § 45-42-200.11

After the first day of January 1983, motor vehicles shall not be included in any other assessment made by any person, firm, or corporation under this code, and any such motor vehicle shall not be considered as escape property by reason of failure to include the same in any tax return as of the first day of October 1983, or any subsequent year. All motor vehicles shall be assessed and the taxes thereon shall be collected solely as herein provided.