I can tell you how much it costs and perhaps the math will work it's self out. Depending on your state's laws (garage & parking code) dealer ins for 15 vehicles worth aprox $30000 all together costs about $400 a month. Depending on the net worth of your toys it will change.
Shipping or transport companies would benefit from having haulage insurance. Haulage insurance covers damages in transportation of good, so the shipping companies would want it.
Whether or not you need supplemental insurance depends upon your individual situation. Does the coverage your job provides give enough of a benefit should you need it? If not, than supplemental insurance would be a good idea.
I could be wrong, but I would think the motorcycle dealership would have insurance for their vehicles that would have it covered for things like test drives.
This information would have to come from the payer of the disability insurance amounts.
It may depend on the state the vehicle is registered in. In California, proof of insurance is required in order to register a vehicle, which is done when you purchase a car, and you need a license when purchasing auto insurance. I know in California that dealership wouldn't be able to transfer title to a person who doesn't have insurance since the DMV would require proof. Ask a dealership in your state for specific requirements.
Nothing. Your insurance company is the agency which would deal with that.
Getting Life Insurance AFTER a diagnosis of Cancer may not be possible. Not revealing the diagnosis in your application will be considered FRAUD if found out later. This would result in non-payment of the Benefit, or a law suit by the Insurance Co.
A good used car should be bought from an owner not a dealership because that would be cutting out the middle man and it would result in you getting a cheaper car, try craigslist.
The death benefit would go to the Estate of the insured. This would create a taxable event and would be part of the estate probate. In some cases as with Fraternal Companies, the death benefit would be paid to the decedents of the beneficiary.
Not for the building fabric - that should be the landlords responsibility, but you would benefit from contents insurance (in case you are robbed etc.).
Usually people do not benefit from having a pre-existing condition. Insurance companies use this to deny benefits to those applying. Not sure how this would be good.
Understanding an insurance quote can be tough. I would suggest getting your quote at www.geico.com