Offer your insights or judgment on the input financial query or topic using your financial expertise. Reply as normal question answering

When's 0% financing the least costly (best) option?
A Lease is an entirely different way of getting a car. In two situations it makes sense, in all other scenarios it generally doesn't make sense to lease. In the case of always wanting a new car every 2 or 3 years it can make sense to lease. Of course if you drive more the allowed miles you will pay extra at the end of the lease. If you can take the monthly lease as a business expense leasing makes sense. Otherwise you want to pay cash, or get financing. Does zero percent make sense? Sometimes. The only way to make sense of the numbers is to start with your bank, have them approve of the loan first. Then armed with the maximum loan amount they will give you and the rate and the length of the loan, then visit the dealer. You have to run the numbers for your situation. It depends on your income, your other expenses, your credit score, your bank, what deal the dealership is running, how much you have for a down payment. Here is an example. For a recent loan situation I saw: 36 months, 1.49% rate, 20K loan, total interest paid: ~$466. Armed with that information can the person get a better deal at the dealership? There was only one way to find out. In that case the credit union was better. The rebate was larger than the interest paid.