I actually prefer the E46 over the E90. The styling, both interior and exterior, i believe is far better than the E90 right now. But like others have said, its usually not wise to get the first E90 Xi production model since those are the one's that have alot of bugs that need to be fixed. But then again, if you get the last current model E46 Xi, it'll depreciate alot once the E90 comes out in May. But if that isn't a problem for you, i'd go for the E46.