You have not made that argument or given any details on why you think that might be the case. I know a lot of people interested in an EV pickup, but who aren't going to spend Rivian money on a vehicle. There are zero options for a $40k EV pickup truck. It's literally never been offered to any buyer in this country. So, we're both arguing with anecdata, but I'd argue for trying it before we say it can't work.
