Don't scare me, I might forget what I tried to forget.LOL.
Serious, some scales are happy and some are not. Some are just off because of weather or the driver simply forgot to take out the spare and tools.
The very last time that I weighed my car at the track I forgot to take out the tools, spare, and it had a full tank of gas to the brim. It was just before I was leaving to go home. I'll get the numbers to you'll soon enough, just when I get to some good scales and when I go see my notes since I've been too busy to play with the thing other than writing on this board. But don't be fooled, these cars are heavy in that they have a thousand little places that have not been explored yet to really remove those last crucial pounds.
Just because 200-300-400-500 pounds are removed doesn't make the car light as in true lightweight, unless it's middle lightweight to start with.
Case in point, if one of those C-bodies weighs 4500 pounds and you remove 500-600 pounds, you still have a 3900 or so pound behemoth to contend with.