This has been discussed on this board before. Your situation is unusual in that it's your passenger side that sits higher than the driver's side. When this was posted before it was everyones driver side that sat higher than the passenger. As mine does. Someone credible concluded that it was due to BMW assuming that most of your drives are going to be sans passenger and it's an attempt to perfectly level out the car. It sounded very German so I adopted it as gospel.
2011 Alpine White BMW M3 Coupe 6-speed Manual w/ ZCP.
2008 Alpine White 328i Coupe 6-speed Manual/ BMW Performance Exhaust/ M6 Wheels. (Retired)
Future owner of a Jetson's fold-up briefcase car. So I can TRULY park worry free.
"what I'm driving here...is an ending." Jeremy Clarkson