Originally Posted by JEllis
You could probably lose 200lbs if you really wanted to:
Aftermarket Sparco/Recaro type seats
Take out back seat
Take out washer fluid and resevoir
Take out all trunk carpeting and liners
remove door panels
Remove all stereo equipment including speakers
Remove all cup holders, arm rests, and all other related items
Lightweight aftermarket exhaust
After all that you might be getting close to 200lbs in weight savings...
I got 250lbs off of my E46, with just replacing one seat with a sparco, completely stripping everything behind my front seats, and my trunk lining.
What you listed is closer to a 500lb weight reduction.