Answer: One way that the automobile shaped American housing was that yards were being made smaller by home owners.
Explanation:
Homeowners were building garages and carports onto their homes. This made the homes have smaller yards. The houses were also smaller since they wanted the addition of the garages and carports. The lawn was also smaller because no the homes had driveways before they had sidewalks from the street and steps to go into their yards.
Other ways the automobile changed America were roads were now being paved, more stores were being built, repair shops were opening and hiring labors, and public garages were being built and opening. This helped the economy a great deal.