I recently saw a "total cost of ownership" study and I remember the following results:
Toyota Prius Electric Hybrid: Highest recommendation, shortest recovery period on investment.
Chevy Volt: Longest period to recover your investment, low mechanical reliability.
The study took into account, among other factors; purchase price, maintenance costs, approx. fuel savings, and residual value.
I don't know if that Prius model qualifies for the subsidy or not. Ditto car pool lane.
(FYI: That makes 3 CM members that say Prius Hybrid,
plus.... Im ugly, but you still talk to me....)