> By law in VA, all cars that are garaged in state for longer than 90 days must pay the car tax.

This is a lie. The law is that someone must register and through that process pay the registration tax. However you can't register a vehicle you don't own.

So you are left with one thing: use tax. Is use tax applicable to you?

>in my former state, Virginia, it is tax evasion

I think this is untrue as well. I'm very familiar with Virginia and spent a lot of my life living there. What makes it tax evasion?