No it doenst cover the problem, problem here is different.
1. There is no such option- "In your admin panel go to configurations > listings > Account type assigned by default to find the settings your looking for." (screenshot attached)
Attachment 1378
2. Once again, if I have a listing plan, with a check box set only for buyer/seller, and it shows right after clicking 'sell a car' button, then it would mean that the client will be treated as a buyer/seller. So why on earth, on the second page, after filling up details for signup, user gets their account created as a dealer?!