Most of the stuff I weighed was the easy stuff, like seats, doorcards, speakers, stuff that came out easy. I pulled out two buckets worth of sound deadening but forgot to weigh that as I was so relived when I'd finished as it's a pain to remove. Once you remove to easy stuff it gets hard to remove more weight. Making new wing mirrors saved 2 kg, removing all the glass, window mechanisms, locks and cutting out the door skin saved about 10kg. Saved about 4kg removing the 5 engine mounts and replacing with 3 solid ones. I'm at the stage now where it takes a lot of effort to remove only 1 or 2 kg but do it all over the car and it adds up