I can’t answer all of your questions for sure, but I will post as noone else has….. Focus on how much out of pocket you will ultimtately pay. How much have you spent thus far in fees and payments. How much will you spend in fees and payments if you refinance? Is the total acceptable to you? Too often, a commmon pitfall is for people to only focus on “what is my payment each month?”. You might be able to lower your payment each month, but if you are ultimately paying more for the car (in total) than you ever expected to….you have been suckered. Remember, each time you refinance, you “reset” the clock to zero in regard to how many months of payments you owe. If you are 8 months into a 5 year/60 month loan and refinance for another 5 years, you will ultimately have paid on the car for 68 months. I wouldn’t see why it would hurt your credit….and you can get the loan from the same bank or another….