Michael 
2016 BMW 5 Series Sedan 528i 4dr Sedan (2.0L 4cyl Turbo 8A)
If you choose the 528i...
 Over the 535 or 550, then you know you're choosing the more economical version.  There are reviews on here that complain about the lack of power with this engine, which tells me some people didn't do their homework before choosing this car.  I specifically chose the 528i Special Edition because I WANTED BETTER MILEAGE, and I loved the package which included no chrome, 19" rims, and many of the tech features but not all, for a very good price.   I drive a Corvette as well, so that's where I get my driving thrills.  The 528i is a beautiful car to drive, and to look at.  The Limited Editions are unique, and I highly suggest you check one out before deciding which 5 Series to get.  If you want bragging rights with the 535 or 550, more power to you.  This car is very quick, the twin turbos provide great low RPM torque that reminds me of the low end power I enjoy with my Corvette V8!