I thought id be brave and scrub some vanish oxi action crystal white stain remover, mixed with some water, into the fabric part of the seats, and wow what a difference! Scrubbed some on the vinyl too and it's cleaned all the grub off without damaging anything! I'm going to stick them all in the washing machine after to give them a good rinse as there's black grubby water pouring out everywhere.
(P.S I do realise that someone's probably already posted this tip but thought id share my experience)



