Not a renewal price, may be helpful in finding a Tesla friendly insurer ...
M3 LR 2021, delivery on 17 March 2021. Outer London post code, with 11+ NCD. Quotes include protected NCD add-on when offered.
Insure my Tesla (Direct Line) = £880
LV = £1725
Churchill (part of Direct line) = £717
Admiral = £1446
Comparison websites = all quotes were higher than Churchill.
More Than = Won't quote and gave up, went with Churchill.
Be aware that Churchill require the car reg when purchasing, they wouldn't accept the VIN or make/model. I called Tesla and luckily my reg had been allocated the previous day, but the text hadn't been sent out.
Found one insurer amusing, don't remember which, make/model was picked up correctly and wanted to know fuel type, only options offered were petrol or diesel!