In deinem Race07 Ordner gibt es einen Unterordner "CustomSkins", schau dort mal rein, dort siehst Du auch wie´s die anderen gemacht haben.
Prinzipiell musst Du für dein Auto noch eine .ini Datei erstellen, ich zitiere mal aus der gelesenmir.txt:
Here follows information on the formatting which should be used for the ini file(s):
Team name
Put your team name inside triple brackets.
[Cool Racing Team]
Driver name
Put your driver name inside double brackets.
Johnny
Car model
Put your car model inside single brackets.
[Alfa Romeo 156 Gta]
Graphics / skin assignment
Format your painted skins like this.
body=johnnyAlfaBody.dds
windows=johnnyAlfaWindows.dds
etc.
You can have several skins for the same profile, as well as several profiles under the same team. Experiment with the possibilities to find you own preferred way.
The skin can be reloaded ingame so that you can edit the textures and see the results directly on the track. Make sure that the car you are working with is focused ingame and press CTRL-F5, this will reload all customizable textures for that car (also reloading skins on other cars of the same model on track which are using that skin).
Example.ini
[Cool Racing Team]
Johnny
[Alfa Romeo 156 Gta]
body=johnnyAlfaBody.dds
windows=johnnyAlfaWindows.dds
interiorwindow=johnnyAlfaInteriorWindow.dds
Benny
[Alfa Romeo 156 Gta]
body=BennyAlfaBody.dds
windows=BennyAlfaWindows.dds
[Chevrolet Lacetti]
body=BennyChevy.dds
...und für den Aston speziell
[Aston Martin DB9R]
body=
windows_ext=
windows_int=
driver=
ext_driver=
helmet=
wheelcolor=
Gruß,
Michael
P.S.: Irgendwie zeigt die Zitatfunktion die Klammern nicht korrekt an, beim Team 3 eckige Klammern, beim Fahrer 2 eckige Klammern und beim Auto eine.