I disagree. 100 lbs is significant.
Every pound shaved is more effective than the last. Kind of like the law of diminishing returns in reverse.
The weight savings of a carbon hood would have to be weighed against the change in balance, but it might be viable. Leave the battery up front, for instance, and take out the spare tire and jack. Take out the back seat... Remove bumpers and replace all glass with plexi.
Driving around like this won't impress anyone, but we're talking about racing. If it's legal, and you want to win, you'll do it.
