I love all the threads asking which XYZ is better. 228/230 or 235/240? N55 or B58? If you pay much attention to most recommendations in these threads, the recommendation follows very closely with what the respondent has in their own garage. I don't think there is a B58 guy or gal recommending the N55 or vice versa. As others have pointed out there are pros and cons both ways, but I think both motors are pretty darn good and have proven reliability. Likewise, I think the 228/230 or the 235/240 are also equally good choices, just as the 6 MT or the 8 AT are. In my mind, all flavors of the 2 Series are equally tasty, but then again, I like both chocolate and vanilla.