I wouldn't consider Demon's thread anywhere near race-ready.
I'm almost down to 2800 wet now. I'd get there with A/C removal and power door locks/windows removal, I think. Gutting the interior could lose a lot of weight, so I'd say around 2650-2700 with the dash gone, headliner/carpet removed, no rear seats, lightweight front seats, no HVAC plumbing or audio. With a lightweight radiator, redoing some plumbing, gutting the door structure, removing all glass (lexan or nothing), wiring pulled, lights removed, fender liners pulled, and lightening what mechanicals you can you might get to 2300-2400, but that's a guess based on my (limited) knowledge of gutting other platforms. It seems in general (sedans) 2/3 of the car's mass is mechanical and structure, but you need at least one seat, a rool cage, fire supression, gas, etc. that adds to that number.
