thank you so much!

oh okay, so if i purchased the car in 2015 i can not claim what I have paid on it in 2017 even if i never claimed it in 2016 or 2015 i would have to do an amend...

I did not pay out anything when I bought it except a small down payment. Everything was financed.

Thank you, what would you consider worth it? Also, Sales tax is the same thing as interest correct? that is what my bank gave me.