What scam is this?

I got my notch from Craiglist. It was a few hours away. He claimed there were like 50 people interested. I agreed to Western Union him the cash. Western Union took the cash, then upon the seller attempting to retrieve it, would not release the funds. I told them it was my cousin, they didn’t care. Apparently, you can’t send money from NY to PA via WU anymore. I ended up having to bank transfer the cash for the car, sight unseen into this guys account. He kepts telling me to buzz off, that he never heard of WU doing that, yadda yadda, and it was suspicious I wasn’t asking any questions about the car, saying he was going to sell it to someone else. I begged him not to. Then, after I transferred the cash to his account, people at work started telling me I got scammed, but low and behold, I trailered home a Barracuda two days later