by the time the car hits the dealer the paint is cured.
it doesnt matter because you can buff on uncured paint anyway.
I had a MK6 2010 GTI. One nice thing about the GTI is that the paint is in "most" cases , super hard. The paint on mine was harder than my paint on my new Audi even.
regular swirls will work with any of your standard swirl removers, but be prepared to have the usual heavy hitters on hand as far as pads. I would imagine you will need atleast an orange pad to do any sort of correction on the paint.
Also, I do fully hear you on the rear of the car. It collects a lot of road debris and by no means should you ever use a quick detailer to clean it off. There is very abrasive road grime and dirt builtup there even after a short drive. My advice is to get a rinseless wash and put yourself on a maintenance schedule of washing it every week on the same day. I have found that rinseless washing correctly has been just as safe or safer than a regular wash.
I also own a white car, and the yellow spots are going to need to be clayed off. If you dont want to do any correction, i would highly recommend you use Pinnacle ultra poly clay. Its an amazing clay that will not mar hard paints at all. Its also a pleasure to work with.
Pinnacle’s Ultra Poly Clay is the single finest clay composition available today. Use auto Detailing clay to deep clean car paint, glass and chrome.
After claying if you want to avoid correction I would recommend and AIO product to clean, polish and Seal the paint. Blackfire makes a great product.
BLACKFIRE Total Polish & Seal, polish and wax, cleaner wax, car polish
Also Optimum makes a GREAT spray-on AIO
Optimum GPS Glaze Polish Sealant
either would probably work very well on your white paint with an orange flat pad (5.5")
Lake Country 5 1/2 x 7/8 inch Beveled Edge Foam Pads, buffing pads, Lake Country curved edge pads, polishing pads
You are going to ONLY want to use 5.5" pads on your PC. So make sure you have the correct backing plate
lake country 5 inch backing plate, 5 inch backin plate, 5 inch hook and loop backing plate
also a couple 4" spot pads would be of GREAT help in a few of the spots on the GTI's front bumper and rear hatch around the plate area. Also in Orange
Spot Buffing 4 inch pads, Lake country 4 inch pads, 4 inch foam pads, 4 inch ccs pads, ccs foam pads
make sure you get the matching backing plate for those as well
3.5" Dual Action Flexible Backing Plate- porter cable 7424XP hook and loop backing plate 3.5 inch.
With an AIO, you should have no problem doing the entire car with 2 or 3 pads. remember , more is better. I would prefer atleast 3.
Using those products will also seal your paint for a good amount of time so you will not need another product to wax or seal. A spray wax would be nice to add on top though.
If you are going to want to go full correction, then continue to ask away and you will find great advice on the forum.
My best advice to you is to keep it VERY SIMPLE. You do not need 4 different color pads and 3 different polish's. along with a sealant and wax and spray wax. Thats the biggest issue I see with new forum members. They have a process that is so overwhelming and most steps or redoing what the previous step has already achieved. Autogeek has quality lines of products that offer what is needed for a full detail. If you go the correction route, I would also recommend using the Wolfgang or Blackfire line for a simple 3 step process or correction, polishing, and sealing.
Create a flawless finish in 2 simple steps with the Wolfgang Duo.
BLACKFIRE Total Swirl Remover Kit