My current project for a friend is this new Tangent ex-PC hopper now owned by NAHX. This model already had areas patched out, but was quite the wrong color for a PC car, it being almost a John Deere green.
The car was first faded with the correct PC green. The car is still a work in progress, but currently already has these mediums applied: rust wash, rust texture, acrylic paint, acrylic oil paint, and powders. This car is finished except for the other side and the remainder of the roof.
Photos of the car below. I’ve used a new technique on the bottom and bays of the car to simulate built up dirt and grime. Be sure to enlarge the photos to see the result! Included is a photo of the prototype car.