i have made 2 of my cars wallpaper the same way , Audi locus concept [link]
and the Audi F1 cryo64 [link]
, this PSD is 3mb in size and almost 87 layers its a full Resources, worth to download.
you can do what ever you want for learning probes , if you wiling to modify the the PSD and use the pic PLZ ask first .
if you are going to download the file plz leave a commutes and let me know what you think