Toyota's latest take on a plug-in hybrid, the 2017 Prius Prime, may be more of a bargain than its name would suggest. The automaker has revealed that US pricing for the Prime will start at $27,100. That's more than the regular Prius (which begins at $24,685), but it also qualifies for up to $4,500 in federal tax credit -- play your cards right and you could pay less for a vehicle that could also cost you less to run. And did we mention that Toyota has boosted the mileage estimates? You now get 25 miles of pure electric driving instead of the originally promised 22, and the equivalent fuel economy has gone up from 120MPGe to 124.