A different "History Of The American Automobile chart than I posted before, and the source website is defunct. If you want a copy, buy one at the Automobile Driving Museum

for a written out lesson about the history of the American automobile:http://l3d.cs.colorado.edu/systems/agentsheets/New-Vista/automobile/

For another variety: http://www.historyshots.com/automobiles/index.cfm?s=cirk

but the best looking one by far is one Jim told me about and I posted years ago:

http://justacarguy.blogspot.com/2008/06/life-line-family-tree-flow-chart-of.html