I feel the same way. My 2011 DHP equipped 535 is pretty boaty, loosey goosey feeling. It feels like it is never comfortable, never tracking straight. The suspension feels like it is never settled down.
Personally, I think the A7 is ugly and the A6 is boring looking. Interiors are nicely laid out but materials are no where near the quality of the BMW, especially mine with perforated vented Nappa. But dynamically, the A6 3.0T Sport spanks my car. My car has no where to hide, and wouldn't have any idea where it went.
I've tried every software update, and PSS tires. Multiple software reloads, etc. It's the toughest car to drive I've ever driven. Between take off tip in, occasionally laggy throttle while underway, unpredictable breaks / stopping power. It's just tiring to drive.
However, not sure what to do. Don't want to get an A6. 3 series too small. Porsche too expensive.
Sophisto Grau / Oyster - Black Nappa, Anthracite Wood Gone but not forgotten.
Heaven is where the police are British, the cooks are French, the cars are German, the lovers are Italian and it is all organised by the Swiss.
Hell is where the police are German, the cooks are English, the cars are French, the lovers are Swiss, and it is all organised by the Italians