• Special order color from BMW Individual
• Color was applied to one 1991 M70 850i 6spd

The colour Gelb 05-407-1007 also bears the RAL 1007 code.

RAL colours are standardized colours defined by the RAL Institute.

http://en.wikipedia.org/wiki/RAL_colour

RAL 1007 today is called "Narzissengelb" which translates to daffodil yellow.

Earlier names were Chromgelb and Postgelb (chromium yellow, postal yellow) which dates back a long time when mineral pigments were still in use for colours and RAL 1007 was based on Lead(II)chromate (C.I. pigment yellow 34).

http://en.wikipedia.org/wiki/Chrome_yellow