Carvana is on the verge of collapse. As a reference point they would have paid $52k for my Mach-E in August, a Ford dealer would have given me about $45k. Now Caravana offers about $20-25k for a Mach-E, whereas a Ford dealer would give me $35-40k for my car. The Ford price is actually decent considering I paid $40k after rebates over a year ago.
So regarding the Bolt, a private sale would probably still get you a quick $20-$25k on that car.