I see your E38 money pit and raise you an e66 one.
I'm a serial BMW owner (3 currently) and had an e32 750Li many years ago and loved it so bought this e66 745Li on a whim as a Sunday car. It was absolutely no money, I've learnt all the horror stories about them after I bought it and so far I've been very lucky with it, a few minor things, a big learning curve to understand all of its foibles and struggling to find someone to service the gearbox but baring that its been a joy to live with and is as rare as hens teeth, they made just over 300 RHD 745LI's, there's about half left and probably no more than 15 or 20 in this spec as this one had pretty much every box ticked on the extras list.
I call it Mariah, its s bit of a diva, very demanding, complains if it decides it doesn't like something (being a Wednesday is sufficient), and obviously costs a fortune in general upkeep, But what a ride and what do you expect for a car that cost well over £100,000 new in this spec. It is the most comfortable place I've ever been in any car and the most relaxing thing to drive I've ever owned, it also handles high speed corners vastly better than my Tesla model 3 Performance daily driver.
It's a bit on the large side so you berth it rather than park it and it knows it can go fast but it feels that's a bit beneath it, this is a car that doesn't have an eco mode after all as that would be a tad vulgar.
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