I guess I'm headed in the opposite direction. I just traded my 06 GT w/ a Saleen blower on it. 450 at the Dyno and 60k on it. Never had one problem and loved it.
I traded it in for 2011 e90 335i CPO w/ 8300 miles on it. I couldn't be happier. This thing responds and handles better than my Stang could have ever done.
As far as Torque and feeling of V8 power not so much. But at 40 I'm looking for something different.
Good luck with your decision. I don't regret mine.