Do both cars have "Atlas Austria" on the center beam? If so, then
it is almost certain that these are true variations (unless somebody
repainted one of the cars).
Both versions of both cars have Atlas Austria stamped on the
underside of the cars. I will snap some digital pictures of them
and upload them in the photo section sometime tomorrow. I will send
close ups of the lettering to George Irwin for possible use on his
site.
I will also snap shots of the ACME trailer which also has
differences (I have both versions).
I hope this will help those who have to have every variation to find
them.
Edward Bridges
Granger, TX