What scam is this?

I suspect that a scammer is trying to set me up on one of my ads right now... I'm toying with him to see how far I can push him...

Here is his first contact:

Hello. I saw your ad on CL for your vehicle for sale and I wanted to speak with you.

Not all of my mail has been making it through on here. I think something is messed up. Lets make sure we can get in touch!

Please message me direct at my personal email -

BenDent39(at)Gail．com

Thanks! - Ben