I am not sure I agree with your assessment here. The 328i was the better car from the review, but the ATS handled much better. The article also reminded that the competition is getting better and BMW is going in the other direction. Even as the article says, add a better engine and the comparison goes the other way...
Our grave concern here is that, with each new car it introduces, BMW seems to wrap more padding around the sensations and feel that make them great—while its competitors only zero in more tightly on those same attributes. (We’re convinced that the E90 would handily win a comparison test against the F30.) The ATS is unquestionably the more satisfying sports sedan of these two. This time around, however, it wasn’t BMW’s virtues that placed it on top so much as it was Cadillac’s shortcomings. If nothing changes in Bavaria and GM can produce a better engine, it’s easy to see the next round of this matchup going to Cadillac.