I have a white 500X Lounge and have noticed as the car approaches 2 years old my rear bumper is starting to change to a creamier shade of white. I've had a close look at the bumper and it doesn't appear to have ever been painted or replaced and I know that sometimes plastic bumpers can be a slightly different shade to the bodywork due to different paint techniques but this seems quite extreme.

Has anyone else with a white one noticed the same issue?

If it fades any more over the next 12 months then don't forget Fiat give a 3 year paint warranty you could claim on.