Actually an even better solution is to use Invisible Glass for the dirt and
the use Z6 and ZCS on top , not the cheapest process but you'll have the
cleanest and shiniest glass ever .
BTW using Zaino CS on your wheels will also get rid of most of the brake dust.
As for the tire shine it can be bought as an automotive application
from Lord , it should be available from many car part shops in your
area . You need to ask for LORD Fusor Tire Shield
(
http://www.lord.com/Home/ProductsSer...7/Default.aspx)
Hth,
Jan