You can do the whole car but it should have some type of wax already on the car.
Just the panel could suffice unless you are feeling extra active and feel like doing it for an extra layer of protection in case of more dropping elsewhere.
Also a rare shot in the dark is if the stain is not tree sap but brake fluid which will damage a paints finish also.
I truly don;t understand what your post is saying . I am sure you do as you wrote it . To someone else who does not know the history of you and your car it is so vague you need to rewrite it.
Sounds like you bent a control arm and that has also caused the bearing on the diff to give out from the force.
Seems like a new set of control arms an alignment and a new diff is in your future.
Look for toms rear support braces and get some urethane bushings as the stock setup is no where near close enough to support the loads you are putting on it. The sparks are more than likely for the control arm rubbing the wheels. Stop driving it immediately before you do even more damage and loose parts going down the road and total the whole thing.
I adjusted your title hope it helps.
I find it hard to believe that it stained that easily.
I would check your contract to see if you had some kind of paint sealant before delivery.
Tree sap can be brown to yellow usually a amber colour. Basically it is the fluid from a tree as it grows.
I would wax the area with a good wax on the whole panel and it should be fine. he dealer should have applied some wax to it after buffing the spot.
Do you have a picture of it?
post the specs of the alignment .
Camber and toe are the 2 things that return the wheel to normal position. If you are not having a hard time turning then the rack should be good.
Lexusk8 is right , the indicator is only for brake lights it has nothign to do with the other turn ,reverse , or parking lights.
92-94 has 3 per side and 2 upper 3rd brake lights
95-96 only has 2 per side
BTW nice to see your name somewhere else beside ash racing.
I know there are a few constant members who live in that area who could help.
The LOC US map should have some memebrs in the area to contact.
Check my sig.
How many times did you try to cycle the locks?
I would try it up to 8 times as it can be tricky to get them to work properly.
It may be a Europe speced car but the controls should be the same.
The solar sensor is not blinking.
Try and explain things as much and in as much detail as possible.
I am glad you found the tutorial on the hvac system but a flashing a/c light is from compressor lock up.
You either have a blockage , bad compressor or expansion valve.
All 3 have easy to search answers on replacing.
Here is a few tips ,
put a few lbs extra air pressure
use the a/c as it stop the heat activated fan from dragging on the engine
stay close behind other cars in a convey if safe and the reduced drag will raise your gas milage into the clouds.
You may have broken your engine mounts the intake hose may have also ripped or broken a wire.
ALWAYS make sure you stop fully before changing gears as well as using your parking brake by activating it with the car in neutral to make sure it is being held with the brake not the transmissions parking pall.
Check the intake accordian for a rip first.