WHY OIL ? / PORQUÊ PETRÓLEO ?

Currently there are engines powered by "Compressed Air, Water, Electricity,solar power, Magnetism,Alchool, methanol, cooking oil, garbage, etc." (all of these considered to be less pollutant than Petroleum a.k.a OIL, and some are even considered to be pollutant free) these also have something in common, thay are all cheaper than OIL.
But the oil lobby continues to keep us "blind" in the presence of such concepts. So, for the average citizen the car engine that runs on nothing but "Their Oil" seems something out of a science fiction novel, or some sort of utopian idea approved only by the unpractical,retarded,obsolete,misinformed and paranoid "dude".
UTOPIA?
I believe it´s more than time we should ask ourselves "why ?" !_BB

http://www.youtube.com/watch?v=nsJAlrYjGz8

http://www.youtube.com/watch?v=p4hs607eNYQ

http://www.youtube.com/watch?v=x1UrlDNkYSo

http://www.youtube.com/watch?v=4_lSxhTatUU

http://www.youtube.com/watch?v=OEfpGoYMdvQ

http://www.youtube.com/watch?v=3XPH3fV1Fd4

http://www.youtube.com/watch?v=QegyXo5u9uI

http://www.youtube.com/watch?v=PBBpwX1sJxQ

PT (Portuguese translation)
Actualmente existem carros movidos a "Ar Comprimido,Água,Electricidade,Energia Solar,Magnetismo,Álcool,Metanol,Óleo de fritar,Lixo e.t.c" (todos estes muito menos poluentes do que o petróleo sendo alguns até completamente isentos de capacidade para poluir o meio ambiente. Estas alternativas também têm todas algo em comum,SÃO TODAS MAIS BARATAS DO QUE O PETRÓLEO) no entanto o Lobby do Petróleo continua a manter-nos "cegos" perante todos estes conceitos que nos parecem utópicos ou saidos de um filme de ficção cientifica.
UTOPIA ???
Creio que é mais do que altura de perguntar-se a si próprio o porquê de tal situação._BB