Add color combination      

This is probably the reason why you downloaded this program in the first place, so here we go:
 

In this example we'll use the carcols editor to make a red-blue combination of the Infernus.

For the first step we need to fire up our carcols editor. If all goes well you should have the image on the right. As you see it asks to load the carcols file, so that's exactly what we'll do.
 

To load the file, click "File" "Load" and open the carcols file. Browse to your Vice City directory, and once there open the folder "Data". Inthere you will find a little file called "carcols.dat".
 

After loading you get something that looks like the first picture, except the red warning to load the carcols file isn't there.
 

Next you use the box on top to select the car we want, in this case the Infernus.
Note that if you installed a carmod that in this list you need to find the name of the old model you replaced, not of the new car.

After selecting the car you should get something like this.

The numbers in the table represent the IDnumbers of the colors present in the game. For example: 0 = white, 1= black, 2 = policecarblue, and so on. Standard there are 95 colors in the game, IDs are 0 to 94.
 

We were looking for a red and blue version, so we experiment a bit to find a nice red and blue. Fill in some random numbers in the 2 top editboxes to find a good color. Fill in numbers from 0 to 94 (or higher if you added some colors) to find a color you like.

For our infernus, the colors with ID 14 and 7 will do just fine. Fill in both colors, and you'll get this: 

Now all we need to do is click "add color combination" and the IDs get added to the list.

Choosing "File" and "Save" will save your file, and then you're ready to go find your car in the game. Of course you might need to look a round a while since the game randomly chooses a combination for a car to spawn.

Here's the result. The Infernus is almost completely red, the blue is in the bumpers and the bottom. But as you see it works :)
 

Of course you noticed that only 1 on 10 infernusses (inferni? :p) will look the way you wanted it. That's because we left all original combinations in the list too. Let's fix that.

To get rid of the other combinations, just highlight them, and click "Delete Color Combination". After confirmation the selected combination is deleted. If you delete every combination except one, all cars will look that way.

Keep in mind that saved cars and some of the parked cars spawn with a predetermined color. That means they will not be affected by the carcols.dat file, and will always look the same color.