Audi has announced that the all-new 2016 A3 Sportback e-tron® will begin at $37,900 in the United States. Some buyers may be eligible for state and federal incentives and tax credits. The first Audi plug-in hybrid, or PHEV, to hit the market will be priced from $37,900 for a Premium package to $46,800 for a  Prestige package.  The vehicle will offer even