Hey maybe you can use this one. You would have to put it in photoshop and make it look nice but its a start. If redstar find his use it because i am sure his is better but this is just a back up i guess. http://motorsportsdecals.tripod.com/motorsportsdecals/887.htm
and keep up the Great work on the car.
@carfreak: Thanks, but I'm not a photoshop freak. I've tested the image, the result is attached. But I'm really not satisfied with it. I'll search more to find a good source for the vinyl. But I'm thankful for every help.
Thanks for the comments! I'll try a more dark color soon. I also agree with andybuck. On this test render the rims are still thin, but I'll fix that later in progress. Atm I'm busy with the interriuer.
The decals are so blurry because I havn't found a good texture in the net... If somone could help me I would be very thankful. I'm not very good in work with photoshop