New front seata save fair bit of weight, and so does a new steering wheel as no airbag etc, half dash id cut more off, just leave the drivers part then make a cover for the side so its as open,
Yeah door cards are supprising i managed to drop 170kg of my civic If you wanna go anal cut the inner skin out remove half the dash Etc all adds.up the glanza still has all seats etc in but the mani and coilovers etc save weight removed the spare wheel etc and my keiichi tsuchiya wheels ( 4kg a corner) save lots