Next step.

Just desaturate the Focus

Looks good so far. How come only part of the hood is brushed though? I see a lot of wips where the brushing just stops all of a sudden any reason why you didnt go all the way?

if he desaturate focus, color will be just grey, without other tones of color, for example blue from sky

A matte black car has no colour in it though really, if he did want a little blue from the sky i could just lower the saturation then change the hue and work from that making his own adjustments where needed

It might look like it has not much of color, but if you take some pictures of matte cars and desaturate the car, you will realize the variations of colors that are present on the paint.

Good Idea ManyDesign