Looks like the seller and buyer can't connect and communicate through the in box. How to make it happen.
When you reply to an ad, the seller will receive a message stating that they have a new message in their CarGurus inbox. It basically looks like a chat window. They will respond to you, and thus you can engage in conversation with the seller. If you are not getting a response back from your inquiries, I suggest looking at another vehicle as the seller is obviously not monitoring their messages as they should.
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