personally i think rat look is best left to those cars that have rust natural, like old beetles and camper vans etc
man made rat look on newer cars does not work for me 
This to be honest...
I love rats, beetles, buses, hot rods etc. But there has been many threads on this subject before and some of the cars that get posted are laughable. The most stupid I posted was a mint mk5 golf wearing a rusty bonnet, roofrack full of sh*t and white walls!... I mean come on now.