Other maps were painted in the same way. After creating my diffuse maps, I do my opacity maps. For that I turn the diffuse maps, grayscale and give them more contrast. After creating my dirt maps I start doing materials for the scene. For creating the paint for the car, I use Blend material which consists of 2 materials: actually black paint and dirt material (In diffuse and opacity maps slots I use maps that were created earlier). The black car paint was made from using the Shellac material which is composed of two VRay materials:


Next I create a Dirty Chrome texture which is also a Blend material, which consists of chrome-VRay material with blurry reflection for more realism and the dirt material. Here is actual chrome material:


The tire material is also a Blend material. First material is tire material and the second is a dirt shader. To give more depth to the tire material I've use a Falloff map in the diffuse slot:



Below you can see the turn signal light material:


The back light material is similar to the material I've used for the front signal light, but instead of an orange in the Fog Color slot, I've changed it to red. Now all the materials are ready.