In the principal material (auto body), I used a shellac material. This material obtains a reflection similar to the real car´s. It has 2 submaterials. One is the part of surface that shines and the other is the surface that doesn´t. The rest of materials are standard.
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Hdri Environment and render parameters:
This is the hdri image used is this image.
I used a “RGB Multiply” material to tint the Hdri map..
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Doing this, I make the hdri´s colour more similar to the background. The final adjust is this..
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Now, I have to move the hdri environment until the lighting fits the scene. Also I have adjust the intensity of hdri
