well if you do all are serval of the things above your going to lose atleast 25 30 pounds.
I mean if you really wanna get race like, remove the back seats your not useing them anyway.
door pannels,carpet.
you could also change all the glass out for plexy glass its a bit lighter and stronger too.
My dad bult a old sixtys cammero and put a plexy glass windsheld and he could stand on it with out it breaking he was about 346 pounds at the time.
Anyway change the stock wheels out for some ligher ones you might gain a few free up pounds there.
carbon fiber vs metal carbon fiber is always going to be a bit lighter the metal so that could shed a few more pounds.
Just a matter of how much your willing to give up..
oh and the ac stuff if you lose all that stuff your going to lose some weight there too!
But its a question of race vs comfort here..
all comforts are nice but if you plan on just racing the car then I'd say by another car for comforts

Good luck on your cars weight loss plan!
