I would shop around before paying the bill. I just bought a new 14 GT and my insurance company for the last 10 years or so wanted another $100 a month for the new car. Called USAA and its going to cost another $50 plus I get better coverage for all three cars.
2014 Grabber Blue Mustang GT Premium with nav, RR and comfy packages, 3.73 limited slip axle and optional 19" machined aluminum wheels
Mods: Boss 302 exhaust with QTP electric cutouts, Borla S-type axle backs, BBK Black Out CAI, aluminum Ford Racing coil covers, Steeda short shifter & bracket, Ford Racing Handling Kit, SHR window louvers