I've only read the first page of this usual crap.
I have a 318i E92 and it is great. The 320i will be better still. So ont be put off. If you need something bigger to satisfy your need to wave your willy then that's up to you.
This 6 pot Horsesh*t is the only support you'll get on here. Remember forums only show the really good or bad experiences people have. The thousands on the road tat don't have any issues dont bleat about them in forums.