For a few months I concurrently owned a 328i and 335i w/ ATs. Havenít had the N54 for 6 months now and not a day goes by I donít miss that old beast. The 328i is no slouch per se but it requires constant effort in the upper RPM ranges where the 335i loafed at around 3000 with the same amount of peddle play imo. I calculated about a 20mph difference between the 2, ie once I got up to 80 in the í28 the í35 would already be rounding 100.
Both have that uniquely BMW connected road feel and supple handling characteristic thatís got me hooked. But if youíre a torque monger the turbo(s) will quench your appetite.
FWIW either version will out run a C300 (: