Why don't we have cars that get 100 MPG after all these years?
user
Well, there are several reasons. For one thing, there are a lot of vested interests that would be harmed by them.  So you need to change the laws and regulations to enable cars with higher fuel efficiency.
assistant
With rising gas prices you would think it would become a #1 priority.
user
I totally agree! But it seems that not enough people prioritize this yet.  I guess people just aren’t thinking about the long-term effects.
assistant
Why don't we have cars that get 100 MPG after all these years?
user
Well, there are several reasons. For one thing, there are a lot of vested interests that would be harmed by them.  So you need to change the laws and regulations to enable cars with higher fuel efficiency.
assistant
With rising gas prices you would think it would become a #1 priority.
user
There's also a mismatch between how our cars use fuel and how it's taxed.  Ideally it'd be a tax that increased as your car's fuel efficiency increased, so it would make sense to have cars that
assistant
Why don't we have cars that get 100 MPG after all these years?