Combustion engine may be an "ancient" technology, but it is so pervasive because for the amount of energy you get for the cost, combustion engines are cheap and easy. I also believe electric cars are the future. I currently own a hybrid car.
Comparatively, a hybrid car costs a few thousand dollars more than the exact same non-hybrid version, about $2-3k. I've more than made up that cost in the years of driving it, so it's been a sound investment.
Electric drives are actually as old as an internal combustion engine technology (unless by a combustion engine you mean steam-engines which are also sort of "combustion engine"). The first electric cars appeared in the 1880s at the same time with the cars powered by internal combustion engines...


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