Do you really think so?

I think of it along the lines of it being an exclusive (truly engineered like no other) range of Mercedes vehicles. Because everyone knows Mercedes are now more than ever restricted by commercial realities. They can not engineer a car far superior to the competition, charge 50% more for it and expect it to sell in the numbers they aim for. Like it or not, every Mercedes these days is a result of a cost compromise. The Maybach brand could be used to overcome this.
It would also fit nicely with:
1. Mercedes-Benz
2. Mercedes-Maybach
3. Mercedes-McLaren
Mercedes-McLaren and Mercedes-Maybach would provide the perfect Halo range for Mercedes-Benz. For what Mercedes currently stands for, having this name associated with a range of absolutely premium vehicles would only enhance, not harm, the brand. That is assuming the new Mercedes-Maybach and Mercedes-McLaren vehilcles are truly oustanding and not mediocre.