and the car I was thinking of is not even extrem, there are others who are, one was discussed on this forum some time ago, the -amethyst - car with amethyst (violet) interior, steering wheel etc.
that car has even NAV-system and the buyer had most likely to pay in access of DEM 200.000 for it - do not forget that the list price was DEM 131.000 already for the M5touring -
-
invoice-amount = DEM 175.451,-- for the below specifications
and the quite average options (except for the interior) are:
490 U - Sonderlackierung
Z1XX - Sonderpolsterung, Nappa, komplett-Leder, lotosweiss
incl. Dachhimmel, A,B,C,D-Säule in -car-colour-leather
etc. DEM 21.130 -
235 A - Anhaengerkuppl. Kopf abnehmbar
243 A - Aribag fuer Beifahrer
245 A - Lenkradsaeulenverstellung, elektr.
302 A - Alarmanlage
339 A - Shadow-Line
385 - Dachtraeger-Laengsschienen
404 A - Doppel-Schiebe-Hebedach, elektr. = DEM 2.220,--
423 A - Fussmatten in Velour
459 A - Sitzverstellung, elektr., Fahrer, memory
494 A - Sitzheizung fuer Fahrer/Beifahrer
500 A - Scheinwerfer-Waschnl./Intensivreinigung
534 A - Klimaautomatik
540 A - Geschwindigkeitsregelung
662 * - BMW BAVARIA C PROFESSIONAL RDS
676 A - HIFI Lautsprechersystem
710 A - M-Lederlenkrad
915 A - Entfall Aussenhautschutz (no charge !)
940 A - Sonderwunsch-Ausstattung (
944 - Nachtraeglicher Umbau durch ZS (
-
by the way:
Volleder is not = full leather
Komplettleder = is full leather, the difference is DEM 10.000 (only ?)

by the way, ZS = BMW Individual