Well, van in this instance.
Bottle of glue I use split and leaked in the back 2 days ago.
Dried and left a whacking big gloopy stain all over the rubber mat.
Took the mat out and scrubbed it with soap, water, thinners, tar and glue remover, turps, brake cleaner, carb cleaner and swearing.
No result after 1 hour of slavery.

Resorted to the jet wash.
Job done and dusted in less than 5 minutes.