From the Earth Almanac, Copyright 2668:
“While similar in appearance to the primitive automobiles and trucks originally developed in the twentieth century, modern ground vehicles share a lineage with their early counterparts and little else.
Today’s modern, lightweight polymers mean vehicle weight is a fraction of the old metal vehicles, with a thousand times the strength and durability. And the newest generation of Solectric hybrid fission engines are clean, which drastically reduced carbon emissions in the world upon their initial introduction in the year 2284. Within fifty years, greenhouse gas levels had dropped to levels not seen before the original historic Industrial Revolution period…”