How much would it be for full coverage in a 2015 Ford Mustang for a 16 year old

A 16 year old male with full coverage on a Sticker Price car of $47,000 that are selling for $70,000 because of the limited production run, unless you are a trust-fund kid, or simply wealthy you can't afford it. You are talking $11,000-12,000 a year. I didn't pull that out of a hat, I got curious when I saw your question and got 2 anon quotes. $1,000 a month bare minimum with --get this--$2500 deductible. The production run was 1,965 cars--get it--to commemorate

I agree the insurance will hit your wallet hard, however if you have high grade point average and get a limited vehicle use policy for just to and from school, and/or work. The hit won't be as hard.