Per Consumer Reports (I have an online subscription) a lot seems to depend upon the future costs of gasoline.
They did a study last Sept to look at ROI after 5 years with an expected increase in gas prices (which they freely admit no one can forcast with any guaranteed accuracy). It also was in the US based on their prices & subsidies.
They compared a hybrid vs the same gas powered model.
Some of the hybrid vehicles would result in a savings after 5 years (Ford Escape), some would still be more expensive (Highlander & RX400h) and the others were in between, usually depending upon if there were any Federal subsidies.
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