Anyone who's been familiar with SJG for a few decades can tell you about teir mac related hang ups.
It was so bad that at one point, back in the eighties, if you wanted to submit anything in electronic format it had to be in a mac format.
Autoduel was definitely released in non-mac formats (I know, at once point or another I've had them all).
There was a quote a few years ago from someone at SJG saying that they would really like to do something to bring the Car Wars license into the digital age after autoduel but they couldn't find anyone to handle it to their satisfaction. Mostly being that they couldn't get anyone to at least develop it for the mac simultaneously. I got the impression from the guy was sort of pissed that they wanted to do a pc version at all.
It used to be out there somewhere on the SJG pages several years ago. if I cared more I might look it up.
If i'm not mistaken, they once tried to keep all the PCs off the old illuminati BBS. I think it mostly just consisted of a questionaire you had to fill out before they would give you a password. Any other old-timers remember this?
I know I could get on to upload my Omega stuff but I was using an Amiga up until the early 90's so I may not be remembering it correctly.