>>> Last consideration .. driving experience .. 328 hands down ..
I think you answered the question!
If you don't mind telling us, how many km's on your current 328i and what is the buy back? A few weeks ago I was looking for a 328i and would have loved to find one I could buy at the end of a lease, to save a few thousand. We found one 2 weeks ago so I am no looking now, but may want another next year.