I enjoy reading Consumer Reports because they are unbiased. This is especially true for their auto reviews. I was reading that the 0-60 time measured for the 330i automatic (with 225 hp) was 6.6 seconds (BMW lists it as 7.0 seconds with the automatic). In addition, I was reading a Car and Driver review of the 330i (225 hp) manual and they stated 0-60 was 6.1 seconds. Car and Driver also measured the 0-60 time for the 328i manual and it was 6.4 seconds. Therefore, in general, I assume the difference between the 330i manual and automatic is .5 seconds. I would assume that the difference between the 328i manual and automatic is also about .5 seconds, which would make the 328i automatic 0-60 times at 6.9 seconds.