You cannot register a car in New York without living there to avoid paying sales tax in the state you live in. Most states require you to pay sales tax based on your residency and where the vehicle will be primarily used. Additionally, registering a car in a state where you do not reside can be considered fraudulent and may lead to penalties.
Registering a car in Mexico also requires residency.
I understand the loopholes you are trying to find, but I promise you the penalties for getting caught will be worse than paying the tax.
Please don’t let my comments suggest that I support a large tax on these Chinese vehicles. I think everything is way too expensive and we need some competition.