Study of Industry Standard Tractors

Really! (Zero to 5 mph in ???) Italian tractor design is very interesting, See: http://www.ferrari-tractors.com/article.htm I have a couple of BCS walking tractors and many attachments including a driven wheel trailer. My source is: http://earthtoolsbcs.com/

Also Porsche built tractors: http://www.porschetractors.com/render.cfm?source=t03~Overview "...1937 order from the German government to develop the 'Volks-Tractor'.."