I listed a 1968 Buick LeSabre and not sure if it's active...

Check if you got any confirmation or special instruction emails, check in your email apps spam folder as well, sometimes CarGurus sends you instructions to do something like place a tshirt on the hood and take a photo of it to weed out the fake ads.

Got the curb feelers and everything...

Thanks KenF will ck it out...we called them curb finders...lol nice ride...and thanks Tom can we trade.

Thanks everyone but still can't figure out how to verify i have possession of my car every code i put in doesn't work...is there a phone number i can call?