I sold a car to Carvana last month. They gave me the quote online and then I did a contactless drop off, super easy. If they are close enough to you they will even send a flatbed truck to pick up your car. They offered $1.5k more than the KBB "Instant Cash Offer". You'll still get more selling privately, assuming you can do so, but I wanted to avoid the hassle and extra personal contact.