Nothing is free, you pay for it one way or another. Plus it only last for 4 years or 50,000 miles. The oil change is one thing, but doing anything else to that car will void the warranty. I am in Germany and I know a lot of people with BMWs and they are money guslers when it comes to up keep and maintenance.
Like I said before, if you like to work on your own car get a Z, if you want someone else to do the work for you, get a BMW.
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