@Mark Zeigler posted:K-Line also made an 18" business observation car with the square back end and ornate railing.
Mark
I also remember a business car called the Black Mesa. In around 2010 I think Lionel did a few Midnight Chief cars - maybe as K-Line by Lionel - and these sometimes come up on auction sites. The business car was one of them, SKU 6-21703, and I assume that like a lot of Lionel’s best aluminum cars was based on K-Line tooling.