Ahhh, so the towels are for water!
I will have to admit that I am actually an expert at water 'ingress' into vehicles... having owned a Landrover Defender for some years now! Towels are actually not enough... you either slip into your swimming togs, or don a wetsuit!
My Plus 4 has the vinyl hood so it should be easy to clean as well, especially with the wet towels!
Friday is now the day... will get some photos up later!
Thanks for the great replies, all VERY useful.
This is a great forum.
Pete.