My buddy has a 2002 I35 and he has a key scratch on his door, its not to the metal or anything so he is wondering if its possible to repair something like that ?

 

rubbing compound or some sort of polish, just go slow and be real real careful

 

i'd recomend meguiars products.

 

At the detailing shop I work in, we treat such scratches with 3M Perfect It II Rubbing Compound, then follow with 3M Perfect It II Swirl Mark Remover. Finally, follow that with a wax/sealant to cover the treated area.