What form of payment do you take with you to buy a used car? I'm concerned about theft, so I don't want to take a big stack of cash.
a dealer will usually take a check, because they can verify funds. a private party may or may not, they usually want cash. I have even heard of people going to the bank with their buyer and getting the money that way. trouble is, a good con can even fake a cashiers check from a bank.