The automobile public has been evolved from its state of trustfulness in the word of the manufacturer or salesman in the matter of car purchases to that knowing stage wherein it must be “shown.” This evolution naturally followed when the every-day motorist became acquainted with the points of excellence and the points of weakness in his own or his neighbor's car. The automobile public to-day is perhaps as learned and as knowing a public as may be found in any branch of business. Several years ago the automobile was new. The buyer did not know the points of excellence or the defects of the given car, but now all that has changed. The buying public has learned to run motor cars, and in learning them has come the knowledge of how they are put together, so that to-day the automobile salesman must depend upon the merits of his car for his sales.