Oh, right.  I can look it up, sure.  They are the Ford Motor Company, General Motors Corporation, and Chrysler Group LLC.
assitant
I’m happy to try to help.  What do you think the difference is between a CAR company and a Big Three company?
assistant
I want to know which companies are part of the Big Three. Do you know?
user
Sorry, I don’t have access to that data.  It would require me to do a search and compare data from a large number of sources.
assistant
Let me rephrase:  I want to know which CAR companies are part of the Big Three. Do you know?
user