I am worn out and deeply saddened by reading this thread.
IMHO, the majority of folks on this site and elsewhere worked their entire lives to finally be able to afford their "dream car", which is often a significant milestone in their life and a time to celebrate. It pains me to hear about such cockroaches out there, but it is a fact of life and, like cockroaches, they will always be around.
Sorry to hear so many sad stories, and can only offer my condolences.
I have been screwed and I have been angry in the past. But I have learned every time. Life seems to right itself eventually and another cockroach dies.