Is CarMax or Carvana better for selling a car?

Neither is consistently better. CarMax offers in-person appraisals that are typically honored as quoted, while Carvana's online offers are conditional on a pickup inspection. CarMax tends to offer slightly higher prices on average for popular models, but Carvana's pickup-from-home convenience is hard to beat for sellers who do not want to visit a location. The best approach is to get offers from both and compare the final numbers.