She got taken advantage of sadly :(

This is absolutely not an appropriate cost for the car she purchased.

Dealerships add bunch of random extra crap: add ons, questionable(usually unnecessary) warranties, service packages etc, to the sale of the car, thus inflating the price of the car. Then they tack on the APR on top of all this stuff they added. You really have to go through the list one by one to see what you are buying otherwise they will easily rob thousands of dollars off of you.

I hope this will help you make informed decision in the future in case you find yourself in the market for a new car. Dealership people are not your friend.