driver's compartment vs motorcycle

driver's compartment

noun
  • Synonym of cab (compartment at the front of a truck or train for the driver). 

motorcycle

noun
  • An open-seated motor vehicle with handlebars instead of a steering wheel, and having two (or sometimes three) wheels. 

verb
  • To ride a motorcycle. 

How often have the words driver's compartment and motorcycle occurred in a corpus of books? (source: Google Ngram Viewer )