This has been discuss many times, but we can make a resume once again.
So far, any driver can seek compensation from his insurance company for a track accident as long as these criteria are met,
Organised track day with instructor supervision
No present official timing or competition related activity
No clause on issurers policy stating he is not covered on a track.
Obviously the insurances company's job is to NOT PAY out so they will look for any excuse not to pay.
If you mention to your broker or company that you do track days, it will be an excuse and reason to refuse you upfront. If they do not ask, do not mention, why would they cover you for more risk.
I answer with these facts as I have been privy over the years to several insurance investigations concerning track days that I was hosting. In all cases,l the insured was covered.
That said, it is just a question of time before the insurance companies add a clause to ALL POLICIES that states- if you take your car to the track, you are not covered- just like what they did after the rain fall flooding of July 1994- overflow from the city is not covered and is in all Que contracts- yes you can pay extra for this coverage, but I can't see extra car coverage being realistic.
Bottom line, if you can't afford to crash you car, don't bring it to the track.Shit happens, even when all looks good.
If you can't drive within your limits on the track, look for another sport!!