depends on contract, if your up to date on payments they usually wont. if you pay in full at time of purchase it wont be a problem
No its perfectly legal and if you are still making payments on it, that increases values.
You can do what you want in that regards. You will still be liable for the payments and the bill will still come in your name. Check with a third party loan company. They may have high interest risk policys they can offer.
If you own your car or house and are no longer making payments, should you still have insurance on them? Explain why or why not.
Not as long as you continue to make payments on it.
Don't understand what you mean by the phrase, "...voluntary have it returned..." However, as long as the primary indebted party is current in their payments there would be no reason for the loan company to contact you for payments.
Yes
Not as long as the payments are current and have remained so.
deferment
Depends on what you mean by
Yes but it will also list that you are making payments!
The best indicator is that you still owe on the car, and you have stopped making payments.
You can pay it off and sell it, or you can get it fixed, or you can just let it sit there and keep making payments on a car you can't use.