ORIGINAL: 1 Bad Mirada
cruise control adds no weight...its all in the computer, and maybe an extra switch. manual nonheated seats would be one option that would cut some weight...and i would be pretty surprised to see a challenger offered with manual windows.
stroken56, emissions laws vary place to place...in michigan, i know lots of people who dont own a vehicle with a catalytic convertor on it...in PA, if your car doesnt have the same exhaust configuration as it did stock, its not eligible for testing, and on vehicles 95 and newer (OBDII) its very difficult to "swap engines", and its almost impossible to pass an emissions test with a different engine than came stock.
Honestly, manual windows are extremely rare these days. They are about as rare as a car without air conditioning, perhaps even more rare than that. The problem is if you don't offer that, you will be chastised for it by the press. Plus it might add to the cost because they would probably have to add another hole in the door panel and make the mechanism. I doubt they designed it with the intention of offering that.
I don't know the laws down where I live by heart, but here is what I know. A friend of mine removed the catalytic converters on his Mazda and he got into serious trouble even though they don't do emission tests on the cars in IL. In Missouri, they do have emission tests so that could be a problem if I wanted to do that, which I honestly would rather bite the bullet and get the model with the engine that I want.