How much would it cost to add this to my car insurance policy?

okay, i am 16 years old and just got my liscense a couple of days ago.
my parents are now paying an extra $800 to add me to the insurance but they want to buy me a really cheap car to drive for about 2 years so i dont crash the other expensive cars we have

say i got a '93 honda civic for around $2,000 with around say 100k miles on it, how much do you think it would cost to add that to the policy?