CT will likely sell primarily to people who don't want/need a truck but are buying it for novelty and have money to spend.
I think Elon made a mistake with this one (and has even alluded to that). Pursuing CT over the $25k was a bad idea that might set Tesla back some years.
Every other car company sells far more models than the 4 Tesla sells.
Tbh most car companies actually design and release bugger all. Toyota for example have run basically the same model vehicles for like 20+ years. With each year just modifying the last iteration. They rarely develop more than one vehicle at once from the ground up.
Volkswagen Group develops a lot of different car models. Sure, they are using the same platforms across subbrands, but the subbrands compete with each other within the VW Group.
Yeah, it's pretty clear in interviews and such he realizes the CyberTruck will be extremely lucky to break even. Just not a good move.
[1] I don't have an exact reference, but this was explained in one of the earning calls after they started cutting prices at the start of this year.