If you do care about maintenance fee, then I think you should not consider Maserati or AM. It is not just the car itself but also the resale value of those two cars in Taiwan is very low. Let alone the local car dealers/importers they sell the same cars they import from US/Europe and sell at a much lower price.
If you plan to drive the car for a long long time or you don't care about the money, then please don't mind what I just said.