Test drove the M340i saloon earlier (they didn't have a Touring available). Such a damn good car. The damping is really excellent, and you would never know that it was on runflats unless you looked. The steering was very nicely weighted in all of the modes, although the steering wheel is far too thick. Why do they do this?!
The performance is far more than anyone needs, and that B58 sounds so nice even with the OPF fitted. It's damn loud too through underpasses
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I had a look at a 330i Touring's boot and it's not bad, but the wheel arches do intrude a lot which makes fitting a buggy in a bit tricky.
I could type a lot more, but I went to Porsche as well to look at a Macan and just standing there on their forecourt made my skin feel alive. I don't know what it is that I like so much about the Porsche brand but I didn't come away from BMW with the same level of excitement as I did when I only had a look at a base model Macan (they're not offering test drives). I think the Macan is probably too much extra money for me since you need about £7000 more for a decently spec'd facelifted (late '18) 2.0T Macan compared to a well spec'd nearly new M340i Touring. The performance of the Macan is obviously not comparable to the M340i which could be annoying after a short while.
I really do like the M340i and it feels so well put together. I'm keeping it on the backburner for now until I can test drive a Macan.