Evening all, Wondering what else can be removed/done to the car to reduce mass? So far I have: Lightweight battery (6kg) Bucket seats (8.7kg) Lightweight wheels (8.4kg) Removed spare wheel, boot flooring, rear seats and belts, front belts, sound deadening in the rear. What else can be done? Remove passenger airbag (thanks SpaceCadet), remove rear crash bar behind bumper, two piece front discs, composite panels?? For rear bumper and dash top is there a how to on removal also?