Best bet is a heat gun. You will most likely have glue left over to remove after which is worse then pulling the stickers. You can use something like Dupont final; clean or some Prep-Sol to remove the glue. Then you will have to buff the paint out.

Chances are you will still see a shadow of wear the stripe was how bad depends on the color od the car. Worth a shot though. I just pulled all the stickers off of a Fire Chiefs car and when it was done and buffed out you couldnt tell they were there but the car was white.

How ever if you are replacing it doesnt really matter.