Anyone have a car under 3000 pounds without the driver? I would guess you could get a well thought out A body down to 2800 ready to race...
A 65 or older Valiant would be the best to start.
2800 will have fiberglass and not stock interior. Problem is when you put a cage to make a car rigid with sticky tires the weight goes back on.
The circle track late model race cars I worked on had full fabricated chassis with a thin floppy fiberglass skin body weighed 2650 lbs (with the trickest parts) before we put lead back in it. Most others were 2750 lbs.
Drag cars are a different animal.