Then I guess I am a poor man ... sigh!
0 to 60mph: 335 is a little less than 6 seconds, and 328 is a little over 7 seconds.
I am driving a 328i X drive formerly 328xi. I think the power is GOOD enough, especially using the sporty shift. And I don't really like turbo, because they are noisy. But if you are willing to pay extra $3,000, go for 335.
I choose x drive because I am in New Jersey, where RWD in winter = suicide.
BTW, the gas mileages of the two are not much different.