I did this exact exercise just over a year ago. I ended up buying a 2017 CPO Macan Turbo. Zero regrets so far. I’ve put over 20,000 miles on it so having the additional two year unlimited mile CPO warranty is nice. I paid about $63k and it had 21,000 miles.
If the X4M had been out, I may have gone that route (traded my 135is) and really thought I wanted to stay BMW. But driving the X 40, I was left a little disappointed and the car seemed overly isolated. I liked the SQ5 but, it seemed more sedan like and a little plasticy in some areas.
I really liked the Alfa but was overly concerned about reliability so if I did get one it would have been lease only.