picked up my roll cage at the weekend, so once mine back the diet starts to see if can get it down below the ton mark!! so ill keep you posted
stripped a 106 to a bare shell so easy to start with as know what to take out:
full interior, roof liners, trims ect
carpets, sound deading
spair wheel and jack
remove dash and take off fire wall liner, as these normally are heavy
also remove it from engine side
airbags
and like people said the engine damper weights
then get naughty with the hole cutter and grinder
then anything else what goes back in make sure its lightest can afford
look at poly windows, fiberglass/ carbon pannels