I actually like that "old document" argument, and cool that someone is listening, Mike!

The constitution is a seriously flawed document, though perhaps the best attempt at putting some limitations on the power of government to date -- you can still see by our current state that it hasn't been very effective at doing what it was supposedly designed to do. There are those that view the constitution as some sort of divinely inspired document -- if it is, that divinity ain't working very well -- its the best the founders could come up with, at best (I believe the Articles of Confederation were far superior, and far more effective at limiting the power of the federal government... of course that is exactly the reason Hamilton sought to replace them with the Constitution, to centralize more power...).
You have a right to bear arms that shall not be infringed, not because the constitution says so, but rather because you have inalienable rights as human beings to life, liberty and the pursuit of happiness. By extension, you have the right to defend those inalienable rights -- you and yours -- from the aggression of others, and such right of self defense is currently most effectively exercised utilizing firearms. The constitution expressly calls out this right, it doesn't create it.
That said, the bill of rights are merely examples of rights that our government is supposed to defend, not infringe -- it is not a comprehensive list. I tend to believe that the right to move freely is likewise an inalienable right (otherwise you are a prisoner to some extent or another), and I therefore strongly disagree with the accepted legal approach that "driving is a privilege". Just as a firearm is the current most effective technology for my defense of myself and my property, a motor vehicle is the current most effective technology for my freedom of movement. :cheers: