I also have a Vette and insure thru State Farm. My MY was almost $200 a year higher than the Vette. When I asked why, my agent said that replacement costs for damaged parts are much higher on the Tesla than the Vette. The Tesla is loaded with specialized equipment, sensors and structural systems that there isn’t an aftermarket for which also adds to the higher costs. I was able to lower my insurance by lowering the number of annual miles (not going anywhere till COVID gets under control).