Paypal can and has fucked plenty of sellers in the past as it favors the buyer 9/10 times.
While not sure if vehicles have different ruling, all it takes for buyer is to scream fire and paypal puts a hold on both accounts and does whatever it wants with the money.
If they decide against you and you taken the money out of the bank, they can and have simply overdraft the account for the amount.
I personally heard enough to never want to be a seller involving paypal.