I wanted to like the 2024+ Prius, I really did. I was in the market for a new car anyway, so I went and test drove one (not that I could have got one right away, at the time). Takeaways...
- it drives really nice with plenty of power
- the "gearshift" (not that it is one, but that part of the UI) is nonintuitive
- the interior looks smaller than it is, due to massive A-pillars and little to no rearward visibility
- it looks much better than past Priuses, but the rear door handles single-handedly put back the "dork factor"
None of that would have mattered that much, but the dealbreaker: Trunk space. I mean, space to load stuff when there are already 4 people in the car so you can't just fold down the back seat. That trunk floor is high. Folded it up and what's underneath? A styrofoam spacer matrix! WTF? Why not a spare tire instead (you don't get one)? I can imagine an ugly hack, tearing all that out, just to get a bit more trunk space but really? My only guess is that the Prius Prime's extra battery goes here, and they don't want to have it have less trunk space than the regular Prius.
We are (by choice) a one-car family and we have two kids. When we travel we need a certain amount of trunk space, and the Prius doesn't have it. Aside from that, the Prime would have been lovely - enough battery to do your around-town driving entirely electrically! I never even thought of the "no heat" angle.