2011 35i trim lines
 

Does anyone know the differences between the Premium and Sport Activity packages? What does the Sport Activity add over Premium and what wheels come standard on it?

Check this linked post. Check pages 6 and 7 of the pdf.

http://www.xoutpost.com/713424-post213.html

Thanks...this is exactly what I needed. I've heard there is a difference in the suspension (Sport Suspension?) as well. I don't see that on here. Do you know is this is true?

No suspension change unless you add adaptive drive (directly or via M pack).