cabriolet vs wheels

cabriolet

noun
  • An automobile with a retractable top. 

  • A light two- or four-wheeled carriage with a folding top, pulled by a single horse. 

wheels

noun
  • An automobile or other vehicle; a set of wheels. 

  • Well-developed thigh muscles. 

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