Not very deep la, but the scratch mark is multiple whitelines accross rear door to rear backside there.

Let me consider. haha. just want kacau kacau thread coz long time no here.
yameh? I tot most will mod kaw punya cheap mod dun want.
wow, refering to this two, proton voiding warranty macam valid lol. lowered spring will spoil the power window.
just kidding. only window and lock? then check whether the connection is loose. if power window can be operated individually at own respective window then probably your driver side control connection loose.

haha macam mana spring can lead to spoil power window  . All the power windows not working, can't lock and unlock using the switch from driver side. But the unlock on the center console can be used. Yea might be the driver side issue, maybe bringing it to the SC to clarify in the morning

raba peha TS owai.

pm me car spec (line,transmission, colour)

ketuk and paint affected areas liao. later got rust later you hailut lot.
if richfag can go ahead paint whole car.

i think it is better to keep the catalytic converter

It's not the plastic sheet issue,it's the bitumen to stick the plastic on the door frame.

Just go buy a can of bitumen cost around rm7 can diy easily and can even put more to last forever