minibus vs minivan

minibus

noun
  • A small four-wheeled carriage. 

  • A small bus, especially one used as transport for small groups. 

  • A sixteen-seater vehicle used as a taxi. 

  • A combined spending bill for multiple departments that is smaller than an omnibus bill. 

minivan

noun
  • A small van. 

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

verb
  • To travel or transport in a small van. 

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