call the bank and ask them to verify funds on a check for you. They will ask for the check number, the name on the check and the amount. Or if it is a local bank take it to the bank and cash it before giving him the car.
-yes call the bank to verify the paper is not fake.
-also verify that the check is filled out to your banks satisfaction so the bank will process it as expected.
a bank draft or cashiers check is like money currency itself, not dependant on the individual but the funds are:
-fist pulled from the individuals account and held by the bank
-immediately available to the people(s) listed on the check, make sure if multiple peeps listed; "yourname OR name2 OR name3" if AND is used everyone will need to co sign the check.
-danger, this type of check is like a $1000 bill, if you loose it... its all gone.
that being said another big area of difficulty in selling a car it the title, make sure your title is free and clear. call your dmv to verify you got what you think. nothing like a upset buyer when he finds out there is ton of work to re write the title. make sure you know where signatures go on the title. sign your name the same way everywhere on the title as "Jim Smith" is not the same as "James Smith".
-meet at your bank, his bank, the dmv registration department.
-have a reciept of sale, style after something official from your state dmv, everyone's signature & date.
-get a grip of the official cost of the car, that number that is used to pay taxes he has to pay. does your state just go off bluebook value?
-does milage need to be stated?