2003 Gasoline Lead Acid MPG 
Tony Karrer Delicious EVdriven
APRIL 21, 2009
On the highway, it runs just like any other Prius, with the gasoline engine doing most of the work -- and the extra batteries kicking in to improve performance at ALL speeds. Two EDrive/EnergyCS prototypes: (100+ mpg plus electricity, 30-mile range, with lithium-ion batteries. Were making PRIUS+ happen.
Revenge of the Electric Car
JANUARY 22, 2009
Going faster than that triggers the car’s gasoline-powered engine, transforming the vehicle back into a traditional hybrid. But the new rules could make it virtually impossible for current Prius owners to transform their cars into super-efficient vehicles that get up to 150 mpg.
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