this is good to be aware of, i've discussed this with dealers, the reality is, when you come down to the final negotiations, the dealers that accept amex for payemnt, and the subsequent five points per dollar from the amex MB plat card, adjust their pricing by the c 10% they incur as a transaction cost, YMMV, and if they do, appreciate the heads up in respect of what dealer, i have an old mate who was senior with MB, who has offered truck drops of new vehicles, and same applies, for them taking the hit on their margin.