First time back to this page in three years. I still admire this design, it just looks "right". Apart from noticing that back in 2006 I thnk I should have typed "hasn't offered", I just want to add that I think your work is as inspiring as ever.
This is an example of art combined with industrial design, which yields a truly beautiful and functional object to behold. If we were on Mars, this would be what a naturalized Martian pioneer would use to travel from one settlement to the next.
Actually, this looks an attractive, functional design for the purpose. Are you sure the heavy plant industry haven't offered you a huge sum of money for the design concept? Just kidding, but nice work!