vauxhallviva.com

The post is still up. But it's a pain in the backside to get too. Facebook has made it harder to share links to adverts now, so i can't seem to share the link. If you copy and paste the guys name Daniel Stephenson‎ into the search bar on the owners page, you will soon see his post and he's profile is still active.
So i take it, that it's a legit post and it's for sale.

seems to be there now https://www.facebook.com/groups/171911909814333/
Its after Bobs post looking for exhaust flange. It would be a good idea if it go lost!!

He says in the comments it is a joke.