If you wash your car week in week out with your standard sudsy bubbles and handy sponge, you could well surprise yourself , and give this stuff a try ! When you THINK your car is clean, try try the "bonnet test"! Lightly run the back of your hand over your bonnet and you can feel tiny rough areas , that is the engrained contaminants that are attacking your car every time you turn a wheel!
Try using the clay bar over your car, after you buff your paintwork dry, then wonder like I did, how did all that gunge get there, and why is it not visible to the naked eye? How come all those contaminants that turn the bar orange and brown ,oxides etc, sit on the lacquer and are unseen?
Basically, using a good liberal amount of the detailing spray and rub the bar over each panel, then dry off with the soft towel.
Proceed to use the polish and buff it all off again , then feel the difference over your bonnet, the back of you hand will feel the smooth mirror shine, and no gritty bits!
It is pricy but worth it, worth doing every couple of months at least, more if you have a very pricy car that gleams and it will stay looking amazing much longer with this little kit!