there are some things u can do easily. for me, i'm going to be getting a cf hood (already have the cf trunk). you can also remove the rear fold down seats if you don't use them. a light weight battery is another good option.
i mean a lot of the guys on here make a good point about not being nearly as effective as getting another dedicated car, but if you want to race in your daily so be it. i mean, think about all the guys that race on a 1/4 tank or without a passenger.