size matters.

What if you designed the largest wheeled vehicle in the world?

http://www.newscientist.com/opinion/opinterview.jsp;jsessionid=JEBJEBNBABNL?id=ns24521

( short ton to lbs. : Online Conversion - Common Weight and Mass Conversions )

the company site:

their competition:

the contrast:

http://www.paramics-online.com/products/advantages/micro_modelling.htm

http://www.mos.org/sln/sem/sem.html