From what I've read, the Sports Package included stiffer suspension:
From BimmerFest e46 wiki page: "Sport suspension calibration (stiffer springs/shocks). Note that 2001 and up 330i sedans got the sport suspension as standard equipment that all Coupes recieved."
That last part: are they saying that every 330i (xi too?) from 2001 onwards had the Sports Suspension?
Also, there's apparently a 3-spoke steering wheel, but what did the other steering wheel look like?