Welcome to the home page for the Mason Dixon Region of the Antique Automobile Club of America (AACA). Based in Hagerstown, MD, the Mason Dixon Region has activities year-round to promote the old-car hobby and to share information and friendship between old-car enthusiasts.

The Antique Automobile Club of America is the largest and oldest automotive historical society in the United States. The AACA is probably the most international in character and organization of all the car clubs. The local Regions and Chapters in nearly every state in the union and in a few foreign countries plan and run their own complete programs.

The Mason Dixon Region has over 130 members. We have a monthly meeting and events such as picnics, outings, tours and shows, to which you can drive your old car.

You do not have to own an antique car to join our club, just be interested in old cars. We’d love to have you join our club.