Let me hazard a GUESS why,
@DBV and
@L-Dude. Both Volkswagen Grupe and Mercedes are huge long standing companies. Both have tons of Euros and massive internal financial admin. Secondly, I would guess that VW/Audi and MB own their own financial leasing group that does their leasing of their brand to their customers. The best case!! In that case, MB Financial certainly does give a shit that you had a nice MB lease, were not charged $500 for a fingerprint, and treated with respect, because it wants you to NOW lease another MB. The fact that the auto salesman did the return indicates to me that the leasing arm was a vest pocket company of the manufacturer.
On the other hand, Sorry to say, I would guess that BoA has Lessees by the cojones with no financial incentive to be fair. And it's lack of integrity is public record.