Thanks for the feedback folks. I'm inclined to agree with the positive f10 vibes. The e90 looks like a very nice car but I can't help feeling that I'd be missing the refinement, etc. of a 5 before too long. I'm sure I could live with the ubiquity of the f10 if it had a decent 6 pot under the hood. I had one for a little while a few years ago and it was a fine drive, but it was a 4 pot and I soon wanted something creamier, hence the e60 that has been serving me well since then.

We'll see. If it wasn't for Brexit on the horizon I'd have no qualms about running the e60 for a while longer. I think that could upset the markets, both here and in the UK for a while, so if I do something now it will be a "just in case". The exchange rate is helping make things more attractive too, although that could improve further as Oct 31st approaches.