Eventually got to spend an hour on the seats last night. Only got the fronts done but they came up quite well considering how long they've been sitting.
There had been some paint spilt on the back of the drivers seat before it was laid up so I attacked this first. May have tried to locate another seat if this didn't come off.
Went at it first very gently with a blade, picking off the worst of it. Then a cloth and white spirit to get the bulk of it off. There was still some afterwards that was ingrained in the vinyl and I was ready to give up. Went to wash my hands and then ......would it work? No harm in trying.
Took the swarfega (gritty type) and a nailbrush to the garage and gently rubbed in the Swarfega by hand then a light brushing and away it came. There are some light scratches on the vinyl but it looks a lot better than the paint splat.
Went over both seats with the wet vac. Haven't came up brilliantly but once they have dried I will have another go at them.
Back of drivers seat before........
Back of drivers seat after.....
Passenger seat done. Drivers seat next....
Half of the drivers seat base done to compare before and after...
Both seats at the end of the night.