NO you can only do a bad job. just to panel by panel. if you wipe your car daily with speed wax stuff id do your car once every six months.
wash your car with dawn(blue) this will get all the wax off your car.
then use the claybar and the lub stuff. (mothers claybar kit.)
then was with car...
claybar wont take out scratches just particals. if you want to get scratches use mequiars scratch x. and if you do clay bar your car dont use the liquid. it sucks.
black looks the best but it gets last place for me cause of how hard it is to keep looking nice. id say blue or silver then red. i could i choose white. mazda has my favorite white. i might have to go to canada.