Any color or type paint is available for your Mustang. Newer paints are usually base/clear polys but the older enamels and even some laquers are still available. Unless you are restoring the car I would opt for a single stage urethane enamel. It will usually outlast the car if applied correctly and look similar to a factory finish (though not similar enough to win a trunk full of trophies if that's your thing).
A blonde, wanting to earn some money, decided to hire herself out as a handyman-type and started canvassing a wealthy neighborhood. She went to the front door of the first house and asked the owner if he had any jobs for her to do.
"Well, you can paint my porch. How much will you charge?"
The blonde said, "How about 50 dollars?" The man agreed and told her that the paint and ladders that she might need were in the garage. The man's wife, inside the house, heard the conversation and said to her husband, "Does she realize that the porch goes all the way around the house?"
The man replied, "She should. She was standing on the porch."
A short time later, the blonde came to the door to collect her money.
"You're finished already?" he asked. "Yes," the blonde answered, "and I had paint left over, so I gave it two coats. "Impressed, the man reached in his pocket for the $50. "And by the way," the blonde added, "that's not a Porch, it's a Ferrari."
i own a repair shop,and go do this,,go buy a hot rod magazine,and look at some of the options in there,, those cars in there have some good paint jobs on them and you might get some good ideas from there also,,good luck with it,i hope this help,s.