The problem seems to be that they sold too many cars with a negative margin. I've heard stories of people selling their cars sight unseen to Carvana for above market value and it seems they were left holding too many cars as the second hand car market normalized and prices decreased. Like a lot of VC funded companies, they were blinded to market realities by the cash each funding round produced. If they'd had to purc…
Could I have made more selling privately? I don't know, but I can tell you that Carvana paid very handsomely to do all the work involved with buying your car.