The six-cylinder car has come to stay. The well-built six-cylinder engine is an exceedingly smooth performer, fully as flexible in handling as a steam car. It was due to the fact that the four-cylinder car was more flexible and a smoother performer than the single or double cylinder cars, that brought the four-cylinder into popularity so quickly, and the same reason that produced the almost instantaneous popularity of the four-cylinder will produce a similar popularity with the six-cylinder, but it is doubtful if this popularity of the six-cylinder injures the sale of the four-cylinder car. There are more single and double cylinder cars built to-day than were built the year before the four-cylinder became popular, and there will probably be more four-cylinder cars built after the six-cylinder has its rightly deserved measure of popularity than there are to-day, because, workmanship and material being equal, the six-cylinder car costs considerably more, and, therefore, the two cars cater to a different demand.