Well, given the fact that you defrauded the car dealership, any contract procured by fraud is voidable, so yes, the dealership can take the car back.

Can dodge dealership handle or fix the issue that they made?

You assume the dealership corroded your car. I doubt it. However, if you think so, take the car to another dealer for a second opinion.

Negligent misrepresentation?

Not "negligent misrepresentation," intentional. A/k/a "fraud." You should sue.

Yes, but the costs of the suit are likely exceed the potential recovery, unless you go to court yourself.

Can I sue Ford Motor Company for known issues with the immissions on our truck and it blowing the motor?

Realistically? I think you are SOL.

Can I ask the dealership to remove packages added to loan, since paperwork never got to bank and I need to resign papers?

Yes, you can ask the extras to be removed (you ask third parties to whom these products belong). But the rebates, if any, would apply to your...

Too much/not enough information. You said, "extended warranty." For how many miles? If it is not expired yet, then refusing to repair under it...

What are my rights? Please Help?

Very common tactic. He may call the cops (because he is a jerk; your status as a single mom is irrelevant); if (or when) they come, the only words...

Did dealership misdiagnose my car problem?

"Can we still get restitution from Nissan, since this was a factory defect?" Sure, but you will have to sue for it. Nissan is a nasty company, so...

What can you do? Why, sue of course. Undisclosed prior accident is fraud; the odometer issue may or may not play out, depending on the paperwork...