I've had 2 5series previously and after owning a 328 convertible, didn't think I'd need something as large a a 5 series again. Unfortunately, there was the steering wheel vibration issue that I just couldn't deal with. The 328 luxury line is fantastic - large enough and I ordered it EXACTLY the way I wanted it. With the steering wheel issue being a big defect, I didn't want to risk ordering a replacement and it have the same problem. So they offered me a sweet deal on a 528 - I'm happy. However - reading the thread you linked on your reply, has me concerned. Hopefully, they'll figure a quick fix for you. I hope I don't have to deal with any issues on my new 5 series - I'm done dealing with BMW NA with issues and the dealership. I just want to have a car with no issues - is that a hard thing to ask?
12/13/12 2013 528i Alpine White, Oyster/Black Dakota Leather, Prem Pkg, Tech Pkg, Premium Hi-Fi Sound, Heated front Multi-Contour seats
Just Ordered 2/27/13: 2013 328 Conv, Liquid Blue Metallic, Oyster/Black Dakota Leather, Conv Pkg, Premium Pkg, Prem Sound Pkg, Navigation Sys
To Replace our leased 2010 128 Conv, Sports Pkg
Previous BMW: 2013 328 "Trade Assist"
Previous BMW: 2009 328 Convertible
Previous BMW: 2008 535i
Previous BMW: 2007 550i