This E46 will be the most stripped BMW I've ever owned as far as I can tell by the build sheet:

S210A Dynamic stability control
S249A Multifunction f steering wheel
S255A Sports leather steering wheel
S354A Green windscreen, green shade band
S441A Smoker package
S459A Seat adjuster, electric, with memory
S473A Armrest front
S481A Sports seat
S520A Fog lights
S522A Xenon Light
S534A Automatic air conditioning
S550A On-board computer
S640A Preparation f tel.installation universal
S645A BMW US Radio
S650A CD player
S661A Radio BMW Business (C43)
S674A Hi-Fi System Harman Kardon
S692A Preparation, BMW 6-CD changer I-bus
S785A White direction indicator lights
S788A BMW LA wheel, Individual
S823A Hot-climate version
S832A Battery in luggage compartment
S845A Acoustic belt warning
S853A Language version English
S876A Radio frequency 315 MHz
S926A Spare wheel
S992A Control of number-plate attachment

Compared to the 650i:

Spoiler:

S1CAA Selection of COP relevant vehicles
S229A Dynamic Drive
S248A Steering wheel heater
S255A Sports leather steering wheel
S2SFA BMW LA wheel, star spoke 249
S2TBA Sport automatic transmission
S2VBA Tire pressure display
S302A Alarm system
S319A Integrated universal remote control
S322A Comfort access
S403A Glass roof, electrical
S423A Floor mats, velours
S430A Interior/outside mirror with auto dip
S431A Interior mirror with automatic-dip
S441A Smoker package
S442A Cup holder
S459A Seat adjuster, electric, with memory
S464A Ski bag
S481A Sports seat
S494A Seat heating driver/passenger
S4BKA Alum. interior strips ground lengthwise
S502A Headlight cleaning system
S508A Park Distance Control (PDC)
S522A Xenon Light
S524A Adaptive Headlights
S534A Automatic air conditioning
S544A Cruise control with brake function
S563A Light package
S5ADA Lane departure warning
S609A Navigation system Professional
S610A Head-up display
S620A Voice control
S639A Preparation f mobile phone cpl. USA/CDN
S645A BMW US Radio
S653A High Definition Radio
S655A Satellite tuner
S672A CD changer for 6 CDs
S677A HiFi System Professional DSP
S697A Area-Code 1 for DVD
S6AAA BMW TeleServices
S6ABA Control for Teleservices
S6FLA USB/Audio interface
S6UHA Traffic Information
S760A High gloss shadow line
S823A Hot-climate version
S845A Acoustic belt warning
S853A Language version English
S876A Radio frequency 315 MHz
S8S4A Decoding variable light distribution
S8SCA Telematics access request,country-spec.
S8SPA Control unit COP
S992A Control of number-plate attachment


But, oddly, it does have some interesting features. I'd really like to know more about the person that ordered this thing. It doesn't have a sunroof, has clear corners from the factory, and they ordered a specific steering wheel. It's clearly performance oriented, or at least meant to look that way, but it doesn't have the ZHP package or any other notable factory performance addons. It does have "Dinan" badging but Dinan never made a 330CI itself so who knows what's been done with the car since new.
The ad says in three places it has heated seats but the switches are not there and it's not on the build sheet, my wife will be bummed at that.