Can scratches like that be buffed out with a bit of polish? I think my Omega get keyed right down the length of the passenger side recently, I don't know when, where or why (I'm always careful when I park and I don't how a plain old Vauxhall would inspire envy or resent in anyone), but it's not very noticeable, it's not a deep scratch and the silver paintwork hides it (silver's always a good colour for cars).