Rob, Where I live, we have an antique auto club. Every year we invite outside people to bring their antiques and then we have a contest where they're rated. Not just GM but all kinds of great cars. Here's the link for pictures taken at the show a few years ago.
https://www.flickr.com/photos/135857927@N03/sets/72157661029597685/My friend Mike has a 1947 or '48 Black Chevy that we go to breakfast Friday mornings at the diner with a bunch of other guys. We jam 5 or 6 guys into the car. Having bench seats we can fit three in the front. The back of the front seat has a thick rope to hold onto. A/C is rolling down the windows. Lots of fun. Here's a picture. He's willing to sell it to you for US$13,000. I wouldn't give him a dime (quid?), but that's just me. : Don;t tell him what I said.
https://www.flickr.com/photos/135857927@N03/22283039243/in/album-72157661029597685/