Motor vehicles are not firearms, so there will naturally have to be some differences in the regulations. People can't stick a motor vehicle in their pocket and take it into a public school without anyone noticing, for example. So regulating firearms would have to be more inclusive, by their nature.
If we properly regulate their ownership and use, transportation won't be a problem.
The reason for the regulation is the public's safety. That sounds "nebulous" to you because you don't care about anyone else's safety, apparently. All you seem to care about is you getting whatever you want however and whenever you want it.
We have idiotic laws because we let our politicians behave like idiots. But not all laws are idiotic, and most laws are far better then not having any laws at all. So I don't know what your argument is, here; that anything short of perfection is worthless?