Also - from the pictures you've posted from customers that have installed this spolier for the e90's - it looks to be TWO different kinds of spoilers...is that correct? If so, what are the names you are referring to them as and what's the difference overall and the price difference. To me - personally - it looked like one was more ROUNDED and stuck out from the trunck less. The other seemed to stick out from the trunk more and was more POINTED at the end. Please advise.