Works out great until you get sued for an amount over your coverage limits... Though, I also agree with the general premise - insurance is almost always a money losing proposition for the individual with the policy. Your job is to find the best price/risk profile for your personal situation.

As for the original posters question... The answer is highly dependent on your insurance company and applicable laws, etc. A phone call to your insurance company/agent will be better than some random guys on the internet.

I personally just have 'standard' coverage - I have/will bought/buy back any vehicle I total to part out or rebuild. Of the two cars I have totaled, one had no collision coverage and the other was on a race track (didn't make a claim, just parted out directly after towing it home).

-Charlie