for you dirt guys out there here's how i mud up my cars... this not rocket science, if you get to much on, wipe it off and go again!! that's the beauty of using REAL dirt, a little water cleans up any/many mistakes!!
ok, your're gonna need a pan or two for the 'mix', have some 'heavy' stuff all the way down to basicly muddy water, an old toothbrush and some imagination!!
this is my set-up...
lets get started!!
i usually do this during contruction but as i'm not close to muddin what i've got wip, i used this Stoops sprinter...
grab the toothbrush, choose the 'mix' of your choice, dip the brush and flick it[run the thumb down the brush]onto the car...
for the wheels/tires, again, i usually do this off the model, amyway, i use the long thin pan to roll the wheels/tires thru and somewhat cleaning the tread off.. for this instance i just 'painted' the mud on as i wasn't gonna pull the wheels off of this!!
use as much as you want... a lot to reflect a 'heavy track' in practice or a little to reflect a hard, dusty, blue groove track with a little tack on the bottom..
don't forget to get UP under things...wings, hoods, fenders, etc...look at it and figure where the roost would go...
now, that wasn't so bad was it??
viola!!!