The 1st BMW I ever drove was a BMW K1200RS motorcycle that I bought new in 1996. Turned out to be a lemon; always leaked out of the front engine cover. Traded it in w/in a year for a Ducati 998 which was a much better motorcycle in all respects. Sold the 996 a few years later but still regret doing that.
The 1st BMW car that I ever drove was a Z3 that belonged to a woman that I dated briefly. She acquired it from her ex-husband after the divorce. LOL!
After that the only BMW that I've ever driven was the 2008 335i E90 that I bought about 10 years ago and still own now.
I've put more $ in this car than any other car I've ever owned in terms of repairs/upgrades but I enjoy driving it and have no plans to sell it any time soon, partly because I could never get the $ that I "invested" in it back out of it but also because I simply enjoy looking at and driving it.
BTW, I've owned my 2002 Toyota MR2 over 16 years and I've also owned by 2002 Ford F250 4x4 Longbed 7.3L Diesel over 12 years. So, keeping cars that I "like" and enjoy driving is nothing new to me.