hi new here. Want to gain some knowledge about a car brand that i respect, BMW.My dad dont have BMW. Not rich people. But i like BMW. My dad is afraid of getting a BMW is because of the car maintainance etc.Is it really expensive? I wanna convince my dad on buying a BMW because he wants to change the current car, 2010 mazda 3.I think the e66 730 is nice and the secondhand one is reasonably price. Any opinion?Tks.