It weighed 3,000 lbs with my street wheels and tires on. I even had the spare in. The 18" Oettingers must weigh 15-20 lbs each more than the track setup, which are OZ Chrono's. Net should be under 2,925. Not too bad for a Quattro A4.
No moonroof, no seats except one Cobra race seat, LW flywheel, CF hood, Borla exhaust help bring the weight down. Still has all the sound deadening, headliner and carpet in place. The 97's are the lightest year B5/B6 anyway, IIRC.

And had 2 subs and an amp in, which I need to do something about removing the subs - which are mounted. No spare. 17" RS4 types with S03s.

My '95 track car weighs right around 2800 but the doors are gutted, a/c is gone and it has a cage.

I removed my AC though and have a moonroof, otherwise pretty much the same mods as you ..LW flywheel, porsche calipers, borla exhaust (alot of weight removed there), no AC, no airbags, race seats, CF hood, SSR comps, 2piece rotors, no radio