Either edge of trim is painted with body color, and is where caulking is applied at most 90 degree angles. Painting trim only, cannot feasibly include caulking, as this fails and opens up over time. Most homes need new caulking when painting the exterior, and a close inspection can determine.
Painting Hard Spots. Specialized aids with built-in know, how tackle the hard spots for you.
Special Surfaces. WHITEWASH. Whitewashes and lime paints must be thin when applied. In fact, best results will be obtained if the application is so thin that the surface to which it is applied may easily be seen through the film while it is wet. The coating will dry opaque, but two thin Coats will give better results than one thick coat.
THE BRUSHWORK. Depending on the art movement and personal peculiarities of the artist, the brushwork can range from delicate and almost invisible to rough and plastic.
Changing Colors. If you're keeping your Mustang the same color it is now then things stay pretty simple. Areas like the door jambs and inside of the trunk are probably still in good shape since they aren't exposed to the weather and you won't have to worry about repainting them. But if you're changing colors these extra areas will cost you. Be sure the price quote you get from the paint shop includes these extra areas. If you wait until the day you pull up with your Mustang prepped for paint you could be surprised by this extra cost.
Proper brush technique: When "cutting in" with a paint brush you should dip the brush in paint and tap the sides of the bucket on each side of the brush, leaving a good amount on the brush so you are able to minimize the times you will need to dip/load the brush. Next, take the brush and make a one foot to two foot line down the wall about an inch or two away from the trim or surface you are going to paint up next to, this is much like taking a knife full of butter and spreading it across an entire slice of bread. After, spreading the paint over the section, go back and even the paint out evenly across the section and cut up next to the trim with the brush. You want to paint up next to the trim or surfaced to be cut-in with the paint brush after you have released most of the paint on the wall, it is easier to cut in with the tips of the brush exposed and not loaded with a lot of paint.
Are the contours rough or concealed?