I once was told by a saleman friend that you are not just handed a dealership just because you have the money.
You have to work your way up (like owning a used car dealership, then a smaller less prestigeous dealership, etc., etc.)
It is like the same thing as MacDonald franchise. Even if you have the money, MacDonald won't sell you a franchise even if you have the money. They will only accept you if you have "hamburger experience" (their phrase).
Good Luck.