My thanks go to Ron Will for these photos. Ron writes:

This past year I helped a local high school with their entry into the X Prize contest trying to make a 100 mpg car. I have attached the drawings that I made for them of what the final car would look like.

I also saw the X Prize contestants at the SEMA show in Las Vegas earlier this month. Quite a few of them are three wheelers.

For those of you who recognise the name Ron Will, Ron was also the creator of the Turbo Phantom.