High efficiency vehicles

So, I was trying to remember a magazine article about the most efficient shape for a four wheeled vehicle. I didn't find it, but I did happen on this one in popular mechanics. The 100 mpg car.

I believe they hit the nail squarely on the head. Read it and tell me what you think.

www.popularmechanics.com

With gas prices at historic highs, PM consults some of the best minds in automotive design and engineering on how to hit the next big milestone in fuel economy. Yes, a four-door that gets 100 mpg really is possibletoday, with modern tech. Here's the