The "Big Cars" part of your comment is really US-centric. In Europe, Japan, and other places, many people want small cars. Some people want faster but most peop

The "Big Cars" part of your comment is really US-centric. In Europe, Japan, and other places, many people want small cars. Some people want faster but most people don't care because there are speed limitations on the roads anyway. Low-emission might not be a priority, but people still think of it, and some governments measures target the most-polluting vehicles to discourage their use.