What moves a Cirrus SR22 quote
Within a single model line the airframe risk is close to constant, so an underwriter is pricing two things: how much the hull is worth and who is flying it. That is why the range above is wide at the top and narrow at the bottom. It is also why shopping between variants to save premium rarely works out: the cheaper aircraft to insure is the cheaper aircraft, and the difference usually reappears in maintenance.
This model prices hull value, aircraft class, landing gear, pressurisation, seat count and cruise performance. It does not price avionics fit, claims history, where the aircraft is based and hangared, or instructional and commercial use. Any one of those can move a premium substantially, and a claim on the pilot's record moves it the furthest.