A couple of years ago, I decided to try to obtain OGR Tour Cars. I decided to convert them to scale wheels and Kadees (I haven't done the MTH cars yet). Here's what I've obtained so far (the last two were released by MTH; the others are Weaver):
OGR 24th Anniversary. This one is autographed by Jim Barrett, Fred Dole, Ed Boyle, and Myron Biggar.
OGR 25th Anniversary
OGR 100th Issue Commemorative
OGR 1990
OGR 1991
OGR 1997
OGR Weaver Models Tour 2004
OGR MTH Tour 2008
OGR MTH Tour 2009