Seems to be reasonable anyhow other parameters like repaying capacity, amount of the loan etc.
The cosigner won't help if that is their score. With a sufficient down payment, you should be able to finance a vehicle at a dealer. But that doesn't mean you should. Personally, I hate dealers, and hate financing. I'd rather save up in advance and pay cash, even if it has to be a used car.
Your cosigner has to have the credit and resources to pay for the car if you don't. Someone with a 617 won't qualify.
Your co-signer is of no use with this credit score.
Unlikely that someone with 617 score would qualify to cosign.
yes - at a high interest rate
IF you asking here, NOPE.
Hopefully ur parents can explain reality and WHY locally.