Your right it is an absolute nightmare to keep clean! I washed it tonight and had it looking lovely, I then drove to BnQ and then back to house. When I got out I could have died, all my hard work was in vain as it had got dirty again in the space of driving about 5 miles!
But when it is clean and you have put in the hard graft to get it that, it just looks and feels good lol!!
Zenith Grey is a great colour, I flipped between Grey, Red and Black many times!