Subaru WRX STI 2015 high insurance ?

Hey, I’m new here and I didn’t find a topic about the newer STI models in the maintenance where I could orientate myself. I’m 21 years old and I’m going to finish my training next month and I’m already a big Subaru Impreza WRX STI fan when I was a kid. I wanted to buy the 2015 model (financing) and my insurance couldn’t give me any information despite my car number. what comes to me when I bought it (no exact pay). The insurance, consumption is only the right foot, tax and wear. I have my driver’s license since January 2014 so I am just out of the probation period have no points and I am in the insurance of my mother who would enter the car as 2 cars. Thank you. -Dominik Vanzant