interesting, my 2013 650iX was absolutely loaded (certified pre-owned) and was in the shop a lot, thankfully most was under the extended warranty. I sold it when we bought the Q7 which we leased and decided to buy. Overall the Audi's have been reliable, but I don't think any German car will match the Japanese for reliability.The worst car we've ever owned was a 2013 X5, it was beautiful but it was at the dealer more than in our garage. The only new BMW I like is the M2, now they've ruined the styling on that car too. Our next new car will probably be a Audi wagon.
The last Japanese car I had was an Infinity Q45...hated it. I was coming off the Audi S8 and the infinity was a soul-less driving appliance and unfortunately it seems BMW is headed that direction too.