Whatever you do....PLEASE..try not to go through machine car washes, especially with black vehicles. It won't take to long for the finish to look like crap. I've had over a dozen cars and 3 of them were black.
One of them was a Honda Prelude, which I used mostly for work. Since it was only used for that purpose I didn't put the time in to hand wash it so it got the machine once or twice a week. I should have taken pictures of the car when I first bought it because it looked pretty good but after a year of going through those machines, the car got dull looking.
I currently have a Black Pontiac GTP, and that only gets handwashings and Meguiars wax and polishes.
Here's my photos of my black GP, if you have the time to check it out. It always stays that clean. :lol:
http://community.webshots.com/user/ogzgtp