The federal government's current subsidy is a $7,500 tax credit, and there are proposals to change that to a $10,000 subsidy at purchase, the same amount that the study found that electric-vehicle owners pay as a premium for the average EV compared with similar conventional cars.
That would be nice!
That $10,000 subsidy thing was proposed in the President's FY 2012 budget, which died a quick death in the Senate. It would have been a point-of-sale rebate to dealers, much like the cash-for-clunkers program, and passed on to the purchaser. It could well show up again in the FY 2013 budget, but before "smart, rich people" start doing the happy dance, the FY 2012 proposal only applied to low/no emission vehicles with an MSRP below $40,000. The $7,500 rebate was retained for vehicles above that mark.