Zitat von ukzero;101208get the "Seven year itch"
Oh yes, I know what you mean. I already had it twice, but in my case it was a "four year itch". Tried to sell a car ("tried" is a little too much to say, my wife was always laughing at me while I was talking on the phone to the potential buyers - enough to say that no-one came to see a car after such conversation ). First time after I bought a Camaro - simple American fun-machine, with a looks that turned more heads than my (not pimped) 8-series (oh yes, I liked that...). After a few months of not driving the 8, I took it for a ride. And a selling process stopped suddenly. Now I drive both cars one after another, are soooo different ! And I love them both. Must say that now 8 starts to attract more attention, while Camaro starts to be just an old coupe. Keep it in mind, the same will happen with Z3, M3, M5 and whatever else. 8 series seems to be like a good wine, while other BMWs are simple Schnapps...
A year ago I had a second "four year itch". This time on the point of a Z4. The effect was exactly the same...
So, the conclusion: don't sell 8, buy what you have in mind (don't listen to any advice, maintenance costs have nothing to do with a pure desire ), keep both cars a year or so, then decide which to sell, maybe both, maybe none...