The euro that I pulled the seats from was number

1,274,963

I found the slip on the rear seat back.. inside the frame of course.. I'll post up my 300D when I get to the seat change..

how about you?

( I wonder if this slip has the color code for the interior on it)

I don't think I've come across anything with the numbers for mine. I believe what you found is the "build sheet" for the car (at least on domestics).

its a small piece of paper glued onto one of the frame pieces.. I know my us spec has one.. the euro has one of course in german