[Maritime Q-Scout]

So I'm selling my old car, I posted an ad online. Just now I got a call from a BC number (note I'm in Nova Scotia) and the caller asked me a bunch of questions regarding the car that is already in my ad. I basically confirmed that "yes the car is red" and "yes it's an automatic" then I said I was firm on the price listed. They spoke very quickly, and responded they will let their client in the area know the information.

What the bloody hell was that? Felt like a scam, I was waiting for "we'll eTransfer you money" or something to that effect.

Any idea what this is? How the scam works?