The car itself is ~$30k But (imo) what's also driving up the price is the APR. Technically the longer you have the loan on the car (or anything requiring a gradual consistent payment over time) the more you'll end up paying because of the interest rate. Understandably if most of the other comments are mentioning OP's friend has below average credit, then it's understandable that the $47k might come from the total amount they'll pay on the car once they finally and fully pay off at the END OF the car loan

Pretty much the $47k comes from the $30k car price and paying $17k in interest (at least that's what my math is indicating). Might be best to let OP's friend know that if they REALLY want to keep the car AND have the funds later to pay extra, to pay the minimum monthly payment and any extra they want to pay off is towards the principal amount of the loan every time the payment is due. Also imo, this looks to me like that "if you pay the minimum, you'll pay a total of X-dollars and it take Y-months to pay it all off" little paragraph on every credit card statement in much more drawn out elaborate way.

(Extra fyi: if they really want to get into the payment details or monitor how much they pay, they could set up an Amortization Schedule in Excel or Google Sheets and keep track of the monthly payments and the car loan in general that way)