wow 9 qts. that's a big arse engine. I wouldn't be surprised if the engine eats oil, especially in the beginning.
I can only speak for the 535i, although it hasn't been consuming oil, the car in the first 500-1000 miles made all kinds of funky smells coming from the engine bay, like burning plastic. I figured it was just the engine getting it's legs. Currently at 4k miles it no longer makes those funky smells. I just did another oil change on monday, #2. I'm gonna shoot for 3 or 4 for the first year, or once a season, then switch to a yearly routine.