Next time you remember (while driving), actually LOOK at the older white cars. They have yellow and brown stains all over them, as if the dirt baked its way into the paint. To me, white just doens't look good after a few years.

I guess ur right about the scratches on black. Mettalic effect is supposed to help reduce the look of dings and scratches, etc. I don't have them on my paint because I do not tailgate people on the highway, and don't go on the highway much anyway, and whenever I do, I spray the front with WD40 so that bugs and other particals do not stick, or simply glide off when they hit the front. Also, it can help to "cover" the nicks and scratches that are already on the car. I also do not use buffers or old rags (which can cause swirls). I change my car equipment every 4 months (or as needed). And if I were to ever drop anything on the ground, I'd throw it right into the trash because even a few grains of sand stuck in sheep wool or a sponge is garuanteed to scratch paint. In fact, I don't even park in direct sunli9ght. I always park in the shade, even if its further away from my destination, and there's no way I'd take my car to a manaul car wash. Those amatuers just don't know...