2001 Kia Sephia.

Some cars fail because they’re so strange (Aztek) but you’ve got to appreciate risk. Some cars fail because they’re unsafe, unreliable, or poorly built. While the Kia Sephia may have been none of these things at all, it fails because it was absolutely awful at being anything other than basic transportation. There was absolutely no joy in the car at all. It was uninspiring to drive, to look at, and to own. If you ever rented one, which is likely how most people encountered it, i’m willing to bet it’s the worst car you can’t remember getting. I bet you can’t even remember what it looks like.