According to a thread on HAMB (by a member I know & vouch for), Mac's Antique Auto Parts has been sold to Eckler's.
http://www.jalopyjournal.com/forum/showthread.php?t=748468
http://www.jalopyjournal.com/forum/showthread.php?t=748468
I've seen this first hand, worked for two Fortune 25 corporations and seen the fall out of buy outs.