Well, by far, the pre-work before you apply the paint is intense. If you're a DIYer, nothing to worry about; there is no rocket science in spray paint a car yourself if you follow the DIY car painting equipment list and all the spray painting steps accurately. You just have to get the pre-work and after-work right, because these two things decide how your paint will look and whether it will be long-lasting or not. Though the work is not challenging to pull off, it still consumes a tremendous amount of time, like 3 to 4 days.