I just did a drive for cancer in a Z4 3.0
I gotta say this thing is pretyy god dam cool. It was an automatic and had shift-pedals on the steering wheel. it pulls really hard pass 4K rpm, really tight handling. Really enjoyed the drive. Although it had steering pedals for shifting, i just didntl like using them. It was in sport mode and there was still around 0.5-1 sec delay between the time you shift and the time it changes the gear which I really couldnt live with. Still it accelerated like hell and sounded awesome too, nice exhaust sound.
I just wish I knew which 3.0 it was, it felt pretty fast but I can only imagine how 3.0SI would feel if i was driving the regular 3.0
I checked BMWUSA and there are two 3.0 Z4s
Auto Z4 3.0 0-60 6.6 secs
Auto Z4 3.0si 0-60 5.7 secs