[mtdavid]

No "Backrest Width" on mine.
No "High Beam Assistant" (M guys at 'European M5 Launch' were surprised with this)
No "TPM with actual tire pressure readout and temperature" - while i couldn't find this in the manual, i was under impression it would be on car - M guys were surprised at that as well.

Let me know if you get anywhere - i'm most disappointed with HBA and TPM (as i have had backrest width before)