Surely this is a joke

"Sprayonmud is a specially formulated spray-on product for anyone that wants to give friends, neighbours, colleagues or just anyone at all, the impression that they have been off-road or, at the very least, out in the country for the weekend.

If you’ve got a 4X4 or off-roader, Sprayonmud will send a message to anyone who disapproves or is just plain envious – you use your off-roader, off the road as well as on it."