every state is different - most states you have 7 days to register your vehicle so ideally the temp ins from the dealer will last 7 days but thats only if you drive around w/ there plates on your car…i dont know of many dealers that allow you to do that because it's a huge liability risk on there end
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If you purchased the insurance on your car, you have insurance. You need to keep paying the premiums to keep the insurance. You get a temporary ID card when you sign up for the policy. This is good until the policy is issued with the permanent ID card (which is good for the policy term).
I am not sure what you mean by "temporary insurance". If you think you have insurance on the vehicle BEFORE you purchase a policy, you do NOT.
In order to have coverage extend to a vehicle, you would have had to have a policy on a prior vehicle that is still in force when you purchase another vehicle. Then, you get temporary coverage for 4-14 days (depending on the state, coverages, policy edition date, etc). You have to notify your insurance company before these days pass & you have to add the car on the day you get it to have coverage on it. The company just gives a certain amount of days to notify them of the new purchase, it doesn't mean they give free coverage, they will charge you back to the date of purchase to have coverage from the date of purchase.
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Insruance agent