It really depends on the company. When I bought my LS, I was 19 and it was all in my name. I got quotes from 1350 per 6 months to 5600 per 6 months.
Allstate goes by the value of the car and works from there. They don't care what color it is, two door or not, etc. They've got a SMALL list of high performance cars, but we aren't one of them.
My insurance only went up $2/month going from an 01 LS to a 00 ITR.