Many of the 0% financing also have a "or $750 cash-back" offer as part of it. I turned down a 0% offer and took the cash. I then went to a Credit Union and got

Many of the 0% financing also have a "or $750 cash-back" offer as part of it. I turned down a 0% offer and took the cash. I then went to a Credit Union and got a loan at 2%. The interest paid over the life of the loan totaled less than the $750 upfront. The finance person at the dealership wasn't too happy once he realized I can do math.