not really answering your question but why not get some autoglym stuff or something to start out? aint dear and good results
This has proper confused me... :S
G3 is a (very heavy!) cutting compound.
Super Resin Polish is a polish from Autoglym
Black edition Turtle 'WAX' is just colour magic with a fancy name.
Just wash the car using some good shampoo and wash mit, dry it, polish it using super resin polish.
Unless you're mad into detailing this will make it look 10 times better.
Do you mean G3 pro resin superwax?
If you're just getting into the detailing scene. Id recommend Dodo Juice: Born to be mild shampoo. Auto Glym Super Resin Polish. Followed up by Auto Glym HD Wax.