To exempt from sales tax the value of a trade-in on the purchase of a new vehicle, recreational vehicle or titled watercraft. The buyer would only pay sales tax on the difference between the value of the trade-in and the purchase price of the new item. This vehicle part of this would eventually save new car buyers (and/or dealers) some $220 million annually when fully phased-in after six years. The bill does not specify what spending items would be cut or other taxes raised to make up this foregone revenue.