i wouldn't worry about it, if you like the car ....lease it with enough miles and let resale be someone else's problem .....
the issue is certainly not product, these cars are as good as any out there.....and lets face it....most German buyers are very much like Toyota buyers, just not as bad....in that they buy German as a knee-jerk action ...i say not as bad because at least they bounce around between 3 brands whereas attempting to get a Camry owner to consider anything else is an exercise in futility
one thing the Germans and Toyota have in common is they were patient and built these throngs of buyers over a long period...cadillac simply hasn't paid their dues and earned their fans yet...each and every one of us have BMW owners in our circle of friends and family and i'm sure our cars have opened some eyes...my best friends last few cars have been an S4, A5, 550i, 750LI and M5 has 2 15 year olds with drivers permits his daughter got a 328i and his son is getting an ATS Coupe because he likes my car (i say getting because he wants to order a stick......GOOD young man!).....
this is how its going to happen i was the influencer, my friends son will be at his high school among i'm sure an ocean of kids being dropped off in or driving BMW's and assuming Caddillac can keep this up and not mess up... in a decade the market share landscape will be different