Originally Posted by MPH
Don't even think about it, go for the 530d. The 520d and 525d are great cars but if you're coming from something with a bit more oomph you'll always feel you are mising something (I went to the 530d from an E92 330Ci).
BTW definitely add the Adaptive Drive and try out Sport + mode
I'm not looking at a new car.. but an 8 month old 520D ED which is ex olympics use. Great spec, full nav, xenons etc, but concerned whether the '20' isn't special enough.. my e89 35i certainly is.