Global sales of Porsche, Audi, Mercedes and BMW brand ( BMW Group sales increased marginally, but includes) have all declined. The end is in sight for German cars as Chinese made electric cars take over. I have had several German cars. Never again ! Sticking to Japanese and probably Chinese cars in the future. German cars were decent once. Now they are notorious for poor long term reliability.
JD Power and Consumer Reports both rate BMW above average.
BTW, my impression of BMW maintenance from prior decades is expensive and not great reliability. I care about it less now with EVs because there is so much less regular maintenance. No oil changes, no brake pad changes, etc.