Looks like a classic case of mismatched paint...it's pretty hard to match up reds because the factory colour tends to fade quite badly. More than likely someone smacked the side of the car in a shopping car park or something like that and it had to be resprayed.
You should see my car...*puke*...most cars more than 15 years old need a respray unless you are willing to live with two/three tone paint jobs.