Holy hell. In America thats insanely long rate. I was terrible at selling cars because i'd beg and plead with people to not take loans over 60 months. If you take anything longer than that your car will always be in negative equity. I wont ever be worth more than what you pay for it and by time its paid off it will be worthless.
Perfect credit buys normally get 0% financing on new cars or 1.79% right now. You have to weigh it out to see which is better. No internets seems like the win but, most of the time they will hold firm on the price. So 0% on a 14k car is probably worse than 1.79% on a 10k flat.
You also have the age old debt of spend more money in the long run but spend less now. Or doing it in reserve. I do tend to think spending less per month is safer for the average person as it gives you more flexibility of your money.