automobile vs buggy

automobile

noun
  • A type of vehicle designed to move on the ground under its own stored power and intended to carry a driver, a small number of additional passengers, and a very limited amount of other load. A car or motorcar. 

adj
  • Self-moving; self-propelled. 

buggy

noun
  • A small motor vehicle, such as a dune buggy. 

  • A hearse. 

  • A small horse-drawn cart. 

  • A pushchair; a stroller. 

  • A shopping cart or trolley. 

adj
  • Crazy; bughouse. 

  • Containing programming errors. 

  • Resembling an insect. 

  • Infested with insects. 

How often have the words automobile and buggy occurred in a corpus of books? (source: Google Ngram Viewer )