Hybrid cars, means ... at least 2 different fueling systems, usually half oil and half electric driven; a good idea but when you can go for electric alone , why keep up the usage of oil? That's where it becomes an useless idea!
The time is there now for energy sources that don't cost much in opposition to ruining you in the process, this only because the industry sells you a story about an energy crisis that is more their issue than yours, can openly manipulate prices as they want and let people think that they "Have To" stick to them as they became depended of the Energy Industry! And yet there are many other alternatives available, working with electric means, water, even Air ... etc...etc ... It's all there but you have to figure out where or by whom you might find the best way or system available for you! Plus, you are not that much bound anymore to the industrial aspect of energy production monetarily spoken.
So I have no real Pro or Con point of view on hybrid cars as it's not the only alternative, not the cheapest, not even the cleanest ( ...but better than nothing of course ...lol... ) and an already over passed concept if you ask me ... !
But that's only my point of view of course :-)!
"Clean & Cheap for you" are the magic words.
P.S.: Here just one very simple example that people can test, even just for fun ;-):
SHOCK:Police Uses Water Instead of Gas for All Cars.."
Interesting and one possibilty under many!