As a teen (18-19) I had a '81 Dodge Challenger (Mitsubishi/Dodge), so it was about six years old. Classified as a sports car. I went with Allstate. I had a good student discount, driver's ed discount, and I was married, and I was paying $1300 a year for full coverage. That was twenty years ago.
I pay a whole lot less now.
The main thing to remember is what kind of car, and if you can be out on your parent's insurance. A four-door is cheaper than a two-door, and pickups are even cheaper. White may give you a price break, red will increase the cost. Good students (B or better) get a discount, as do those who have taken driver's ed.