I've used to be with Progressive Insurance on my Dad's policy. That was years ago, I was driving a 99 Saturn SC 2-Door which for the beginning my 6-month premium was around $684. It's considered a Sports car, so it going to be considerably high, and her age doesn't really help alot.
Be careful, make sure that she knows the way of a driver, if ( hopefully not ) she wrecks, watch the premium for you and her sky rocket. Also if she has good grades, she may be available to get a Good Student Discount. Which could save you some $$$.
Just do a quote from www.progressive.com. I use ESurance for all my needs

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