Thanks for the welcome and your useful comments re the drive coming from the M40i.
The driving dynamic was an important consideration for me but after several fairly powerful cars I decided to go for something a little more ''sedate'' this time and 230bhp will be about right for me. I change my cars often, this will be my 12th in under 15 years and I rarely/never buy the same model more than once. I love trying out different cars/makes/models/power/4wd,fwd,rwd etc and comparing them. Some I really enjoy and others not so much but I don't do pcp (unless it's very short term to take advantage of any discount) so I can chop and change when I want.
When I bought the M40i I had a long test drive in a Q3 45 TFSI Vorsprung and I had narrowed it down to the two but went for the BMW due to the deal I was being offered as I was part-ex another BMW (m140i). So after having the BMW for a year it's now the turn of the Q3, could be long term or short term, time will tell

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My neighbours certainly won't be sad to see the M40i go - the start up noise from the straight 6, especially in cold mornings has been known to wake a few of them