Generally, and in my experience, NO! And I've traded in three cars in 6 years so.... The sales men will mislead you to believe that's the case but that's not true, except maybe if you're downgrading from say a 2017 model year to a 2012.
Yes you can always put your old car depending on the car they can give you credit for a new car
Yes. They are very helpful.
Yes, great deal, make sure they give you a good deal on your car
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