Pre Approved Car Loan

is there a way to get pre approved for an auto loan fast?
I am looking to buy a car. Is there a way to get pre approved quickly? maybe by going in a bank? I filled out an application online through my bank but i wont get the results for a week at least. I recently ran into car trouble and now am carless. Any info will help. thanks.
If you have collateral you will be approved very fast.
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