If your car "needs" a paint job get a paint job. Truly the wraps nowadays look awesome and I have seen some ones it is hard to tell door open. That said they are usually done on newer cars with good paint by guys who want a specific or different look. You will spend about 1/2 as much on wrap as paint (comparing same quality levels) but it wont last 1/2 as long. Esepecially if you have paint issues.
Basically if you need a paint job get one. If you are all good and want a different look a wrap is a good way to do it.
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