this is some stuff one of my friends tried, what do you think?

http://ns2.namaeserver.com/~wi6/CGZ8/

 

Looks like that other Z8 has been through the car wash more than a few times. Then someone who didn't know what they were doing took a high speed buffer to it and added buffer swirls to the scratches (spider webbing)
poor black Z8

 

the coated one had been taken to a carwash and washed with just water and towels, and it still shines like that!

 

im skeptical, i would like to see before and after pics, anyways after i saw the guy say on the bimmer forums that all you have to do is wipe it clean with a towel, i became more weary

 

The grey Z8 looks so much better, anyway.

 

Damn, who's lucky enough to see 2 Z8's in the same place. I've only seen 3 of those cars down here, and they were never together.

If you put enough wax/sealant on a car, it's definitely going to look better than a car that doesn't do that. It's not really a fair comparison.