Is buying 2004 E61 with M57D25TU still good idea in 2026? I want a reliable daily. The engine seems to have good opinions, but on the other hand it's a 22 years old car. My current car, A4 B5 is 28 years old and for the past 15 years it required next to no work. It's pretty basic though, in terms of equipment. E60s are usually quite stacked. Any of you drive any of those? how much is the yearly maintenance on them?