The m340 is auto only. The only manual offered in any of the 3 series is in the base (I love that they call it base) M3. However, the transmission and the feel was simply awesome in that car, and my mother BMW's. The B58 engine and ZF transmission are an absolutely amazing pairing - so smooth. The car itself is every bit as fast as the 4BW, but it's a totally different "feel". It feels "quick" vs the BW, which feels "fast" and even though the 340 is blisteringly fast, it just doesn't do it in a way that makes me smile. The handling of the 340 is great as well but the handling of the BW is better (even on regular roads, I felt that way) and "feel" (that word again) of the BW is just better. The BW feels more like you are driving it, even faster and the BMW, while amazing felt sterile.
In a straight line, I actually think the 340 would beat the BW and in real world cornering, they'd be really close - I will not track the car to see the difference there - but I think the BW would win. But, to me, it was just the feeling you get when you sit in that seat and drive the car. This may be a terrible explanation but in the 340, I felt comfortable listening to CHILL 9the Sirius XM station) - it just seemed to fit. The BW, even in TOUR mode, which I have been driving around in, which is incredibly comfortable, makes me want to put on HAIR NATION or something similar.
That, to me, is the difference. And I want a car that wants to be blasting ROCK vs driving around with house music
