Changing Car Colour
First get a car picture and then click on the
Magnetic
Lasso Tool 
and then cut side of car
look like this

Now go to Layer > New Adjusment Layer
> Hue/Saturation and input the following options:

And also these following options

Change this box to the color of whatever colour you want to give your object for this tutorial were choosing purple

Heres the final product! you can do this as many times as you want and even to specific parts too!
