For what reason will we be using more plastic on vehicles?
1. for better mpg
2. cheaper, and easier to work on and with.
3. cause the industry is bored and is looking for another way to for us to spend more money

Now I'm only 19 so i honestly don't know much, but this is my opinion so let me know what you think.

1. If we start to mass produce plastic panels for vehicles, to save weight (with plastic being made from crude oil, coal, and natural gas) wouldn't this only help to deminish our natural resources even faster, and as a result gas prices would raise considering there would be just one more use to fight over the distribution of these items? Now I honestly am not sure if I'm headed down the right path with this so let me know.

2. I have heard that for the most part it's not worth fixing a tear or hole in a bumper for example, it's easier just to replace it then trying to fill it in, smooth it out, and paint it. Now I can believe it being easier to work with when repairing, less actual hands on tweaking(like with metal panels). In the end I'm trying to get at that if the majority of shops replace instead of repairing, wouldn't we just be wasting material all the while spending more money just to replace what we throw away?

3. Cause everyone knows already that it's hard enough to keep up with the ever so growing demand on new technology, in order to keep up with the new demand some will have to go back to  college or a tech school.

Once again I'm not to sure if what I think is right or not, so let me know your thoughts.