At the end of the day, this is a topic we have discussed many times.
https://dodgechallenger.com/forums/fb.asp?m=8892
https://dodgechallenger.com/forums/fb.asp?m=116
The safety features and safety design is a major contributor as well as creature comforts all add to the weight.
The cost of customization in manufacturing is just too high to delete or add options.
The comment about deleting air conditioning may be fine in the North but for example the southern part of the U.S. people would think you are nuts
with temps consistantly in the 100 degree range every day.
Bottom line: The weight of the Challenger is going to stay that way unless the come out with a newer platform that is light to begin with. Even though this is a shortened LX platform we have known since 2 years ago that it was going to be heavy just like it's brothers the Charger, Magnum, and 300. No news here.
Let's go talk about something more exciting like Superchargers.