Motor vehicle sales tax rates differ greatly inside the United Nations. Car tax by state often varies within counties and municipalities. If you are moving to another state, calculating car tax prior to moving get useful in determining location to grab. However, if you are trying to avoid the car tax away from your home address, then go ahead and purchase a house to park your car in because unless you possess a house or live in the state in question you risk tax evasion. Car dealers and native m...