Automobiles that thrive off of alternate energies. Car companies show off how fast and furious can be green and clean.

Danny Seo shows what to look for in environmentally friendly paints.

OK, I’ll admit it: On more than one occasion, I have put my beloved Toyota Prius into reverse and come uncomfortably close to running over a few bystanders. It wasn’t because I didn’t see them (I swear!) it’s because they didn’t see -- or, to be more precise, hear -- me. While operating on its electric battery, my car is silent as a shooting star, so the pedestrians waltzed right into my line of fire, having no audible warning that I was approaching.