Multiple “unique” vinyls

As everyone knows, in NFS Underground 2 you can apply multiple layers of vinyls, but you cannot apply multiple “unique” vinyls. But that's only in theory!
Every game has its own bug. In NFS Underground 2, for example, one of the bugs is related precisely to applying vinyls.
So. To apply multiple “unique” vinyls, you need to take a couple of simple steps:

1. Go to “tuning”.
2. Select a car and enter the car shop by pressing Enter.
3. Go to “Paint and decals”.
4. Select the “decals” item and choose, for example, middle layer 1.
5. Choose the vinyl you like.
6. Then return to the car shop and pay for the work ordered.
7. Then repeat steps 3-6, but this time choose a second vinyl you liked.

That's it, now your car has multiple “unique” vinyls!
Admire it and drive with pleasure!

P.S. Translations in the game may differ. You can apply up to 4 layers of unique vinyls by repeating steps 3-6.