equipage vs landau

equipage

noun
  • The carriage together with attendants; a retinue. 

  • A type of horse-drawn carriage. 

  • Equipment or supplies, especially military ones. 

landau

noun
  • A type of lightweight, four-wheeled carriage in which the front and back passenger seats face each other. 

  • A style of automobile based around the design of landau carriages. 

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