Carvana picked up my 2013 BMW. Showed up, I signed the paperwork, they hit the button to transmit the money to my account (took 2-3 days for it to hit my account) then had a tow truck pick up the car and drive away. They didn't even test drive the car.
If the offer's good from Carvana, then do it. So easy. For some reason they always gave me low offers on my Hellcat but they bought my BMW over what KBB private party value in "very good" condition was.