Reine asked "what's going on here?"
I posted a reply but it wasn't serious, as I don't think many of us (sure, there are some) seriously consider buying a "girly car". To me, the best car for crossdressing or anything else is a reliable one.
Anyway, to me, what's going on here is "artificial femininity". This thread reminds me of one a couple years ago when that OP posted "can you recommend feminine activities for me to do?" Of course, many responders shot down the idea of feminine activities. There are only stereotypes of feminine activities: cooking, sewing, knitting, shopping, etc. Oh, and losing the ability to turn a wrench. Some like to clean house while wearing a maid's outfit, but that's mostly fulfilling a fun fantasy. It just seems to me that some crossdressers "try too hard" to be feminine., and that includes the need to drive a girly car, something that few women do.