I have many friends who come from German brands... primarily Audi, BMW, and MB... well VW too... but I have two close cool cats I know who both have had multiple Audi products in the past (2010 S4, 2014 S4, 2009 R8 V8, drawing a blank on the others) and they swear those cars are bulletproof and perfectly reliable inside and out.
As I said before, and I will say it again... all brands have their lemons and unreliable cars... certain brands though (statically speaking) have a higher amount of problems to go wrong with their cars than others...
I had to go to the dealership five times to fix my brake problems within a six month period of a brand new car. Does that mean the Stinger is garbage and unreliable? No... probably not... But seeing first-hand how poorly the dealerships communicate with corporate and how everyone is backwards with how they work on things is not confidence-boosting to say the least.
Also, and I don't remember if I wrote about this before, but when I was cross-shopping and test driving cars before getting my current Stinger... I remember one of the three
3.3TT models I test drove went into a strange "limp mode" after the first launch... the sales guy doing the drive with me called his manager to take a look and the manager said he had never seen that issue before and said it was probably a fluke. This was on the 2020 GT1 with AWD. The other two stingers, both GT... but one was RWD and the other AWD... did not have this weird thing happen during the test drive. Of all the cars I have test driven, whether for myself or family or friends, I have never experienced one having such an awkward hiccup before lmfao.