How much does car insurance cost for a 17 year old?

I can get my license anytime now. North Carolina doesn't offer good student discount. I'm asian, will be driving my dad's 2000 Ford Windstar with 70,000 miles. My dad says that adding me on to his allstate account would cost 1100 every six months. That sounds a little exaggerated. Is there anywhere else where I can find cheaper insurance?