The answer is no.
No, because you can't show legal title to owning the car.
yes it will.
You don't need insurance to trade but you do need proof of ownership. If you don't have a title, then contact your Motor Vehicle division and ask for a replacement.
All car dealers SHOULD keep registration fees on a trade in car but if a client requests other wise then there is not much they can or will do, although if you ask to know the registration fees they should be able to tell you.
Contact your insurance company and supply them with your current address. That address should match your car registration as well as your driver's license.
Yes, as long as you have the title or transfer of ownership registration.
I dont no but is this the car, The vehicle Y681UDS, a Nissan Almera (5 Door Hatchback).
when you dont like your current car anymore
No. You'll need a current registration or a title.
Yes. You are driving so you are responsible.
yes, even if you still owe money on your current car
Should not cost you a cent. Simply show them your paper-work for your vehicle such as registration, [insurance], and also your driver's license and they'll appraise your car. This process however can take awhile.