Controversial take: If you are buying a car for $29 f-ing thousand dollars, with no downpayment, and accepting interest rates over 20%, and can and have afforded to pay $250 per week in repayments, you have no right to be complaining about the interest rate you agreed to.
In NZ there’s a car for every budget. You don’t have to buy new if you can’t afford it.
Thirteen thousand dollars in interest, Holy Hell.