Mike—you let that car above go?
I would have tried to talk him down off the ledge from selling a car that beautiful. If he replaces with a Prius, I am calling the state mental hospital.
No experience with Carvana, but I bought my current truck from CarMax. Only had 5k on the odo, and compared to comps at regular dealerships, a really good deal. I also sold them my old truck. They offered exactly what I expect to get in trade at a regular dealership, which, of course, is substantially less than you could sell it for to a private party, but without the aggravation. If I were going to buy right now, though, I'd likely buy new, at least for what I'd be looking for. Gently used models are almost as much as new.
A little less than 6 years ago I sold my wife's '07 jeep to carmax and they gave me exactly what I wanted. I'd say less than an hour. Easy.
A lot depends on what you're selling. SUVs and such are hot right now. Sedans? Not so much. (lower gas prices are the biggest factor I see.)
Edit to add, The offer took less than 20 minutes. The rest of the time was clerical. I had a soda and watched Jerry Springer.