I remember the colorful photographs and artwork of "Life" magazine as a child. The excellent artwork goes back to the turn of the century. These covers and automobile ads appeared in the January - March 1906 Life magazine. I thought the ads interesting, and copied a few below. Ford had a full page advertisement, along with Packard, Olds, Rambler, Pierce and a few others. Many makers had partial page ads. If you'd like to see more of the ads use this link:
https://www.dropbox.com/s/zcbzfr8l57ac5yc/1906%20Life%20Magazine.pdf?dl=0
courtesy Google Books