Expensive brands in the automobile industry will always put an expensive hole in your pocket.
I have seen few of my friends who had Mercedes, BMW finding it difficult with the maintenance bills.
If you have money (basically if you are rich) then you can drive any car and pay the bills it brings along.
I am a Honda Civic owner and I find Honda cars more reliable (touch wood).
A friend of mine had an Opel Vectra and a Mercedes E class. I used to see him often driving to the garage than to work. He sold them and bought a Honda Civic Type R. So far the drive to the garage is not happening (for the past one year).
Regards
RB