Insurance on Your Collector Car

I have Infinity on mine. Never had a claim so I can't attest to how good they are but the price /$coverage was better than the more known brands. I pay like $175/year for $25K coverage.
The cost for collector car insurance compared to regular insurance is fantastic. I looked into using it for a new Challenger that would be kept and driven like an old classic but my state (NC) will not allow it's use on anything less than 30 years old.