I'm providing my own review in this thread, I've driven it, as detailed in the OP. Feel free to contrast my impressions with other reviews, or hell, go drive one yourself, see if it makes the bile creep up the back of your throat like you seem to think it will. I liked the BMW i4 M50 considerably more than any of the Tesla offerings, which is contrary to the position of most professional reviewers. Of course my experience here is also with the current highest spec version, which has more power and all the options, but I doubt that would have too much influence on the impressions, based on what I saw in the video.
I've driven, and reviewed for the board, numerous EV's, but I am not an EV guy, as my signature shows. I find my views are often contrary to those of folks that are career EV reviewer people; people who love Tesla's for the most part, which I don't. People that get excited about "vegan leather" and a tablet bolted to the dashboard and aren't bothered by a sea of plastic or a lack of a HUD, turn signals, or data in front of the driver.
Back to the Charger:
No, it's not a practical car. It's huge with relatively low amounts of usable space as I noted in the OP. It is however, a hell of a lot of fun to drive. Will that seduce people that are the traditional Challenger's audience to give it a chance? I think that's unlikely, but that seems to be the bet they are making with it.
I've already indicated who the target customer is. The question is whether those people can be converted to being EV customers, which I think is a foolish gamble and unlikely to be successful, but I welcome being wrong on that. So yes, there IS absolutely a target customer, but this is like Alfa Romeo going after Toyota customers, it's likely to fail.