If it isn't really noticable from a few feet away, you should probably save your money for something more useful and try to forget about the whole thing (it's not good to dwell on unpleasant little incidents). I mean it's a nice car for a 17-year-old but it was a hand-me-down, wasn't it? What about the cars you really want? Also when something more important goes wrong with the car (bear in mind its age) you may need to fork out for repairs then. This year I've spent over £350 on my car sorting out engine faults, the tracking and a new tyre. And that's nothing compared to the cost of some of the repairs it's had to have over the years.