landau vs minivan

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. 

minivan

noun
  • A large and spacious passenger car, typically with five or seven seats and sliding rear doors 

  • A small van. 

verb
  • To travel or transport in a small van. 

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