Motor vehicle sales tax rates differ greatly in your United States. Car tax by state often varies within counties and locations. If you are moving to another state, calculating car tax prior to moving possibly be useful in determining where and when to decide to purchase. However, if you are trying avert the car tax from your own home address, then go ahead and acquire a house to park your car in because unless you keep a house or live in the state in question you risk tax evasion. Car dealers a...