Ford Cosworth (escort or/and sierra)
Volvo V40 T4
Saab 9-5 Viggen
Koeniggsegg

Ok...

I did as the tutourial said.
I opened a skin with Photoshop, edited it a little bit and "save as".

But why does not the skin appear in the game???
Is there anything more I'm supposed to do?

Beginner as I am, I wonder if there is any good instruction how to make own skins for cars and make them work in the game...???