Thanks, Vernon!
About the time you were responding, I stumbled across an Ebay auction for a Union Pacific Inspection Beetle...RailKing line. The photos thereof...esp. the underside...looked VERY familiar.
So, with your info we found the appropriate MTH catalogue in our file cabinet! Actually, the 2002 V2 catalog shows the VW inspection cars in the four colors, but the CSX logo first appeared in the 2003 V1 catalog, apparently.
Anyhow, it's still an interesting find. Apparently a short-lived product. I was working at the LHS at the time...I have no recollection of these items (The boss may not have ordered them??).
It's a bit of serendipity for us, too! We have two VW's in our garage...both blue!
Thanks, again!
KD