auto shop vs service area

auto shop

noun
  • A shop that deals in the repair of automobiles 

  • A school class dealing with the repair of automobiles. 

service area

noun
  • A place built alongside a limited-access road where one can stop to buy fuel, refreshments, and so on. 

How often have the words auto shop and service area occurred in a corpus of books? (source: Google Ngram Viewer )