2 credit payment options, which one?

To be honest I'd go for option 1, it's true that you won't be able to get a decent car for a while but it's more important to be debt-free. If you need a car you can always use public transport for a few weeks until you get enough money or buy a small used car that's really cheap but is enough to at least get you to your destination. Besides, having credit-card debt reflects badly on your credit score so of you've got debt it will be harder to buy your new car with a loan or monthly installments (it's better to pay your debts before buying the car). As your your parents finding out, well they will find out that you're without a car anyway so might as well just get the debt over and done with, if you spread out your payments across several months (apart from having to pay interest) your parents will almost surely get to know.