What happens when you have an auto loan and you die?

Answer 1

The debt is transferred to your estate.

It still has to be paid, depending on the contract you signed of course, but is handled by the Executor along with any other debts you may leave.

Any creditor can make a claim on your estate but these claims may not all have the same legal standing. If there is a dispute it may need to be decided by a court of law. This should be avoided at all costs as it is expensive.