A bit late to this party...
I'll have to agree with Tierfrund...14" or 15" max on an e12. I like the ALPINA look too, though they are now quite common, and I would prefer them 14".
Then again, I like steelies, and just paid a good amount to re-finish a set of 13" for my Skoda, so maybe I'm not one to talk...!
Of the two, I think you did make the right choice...
I'll have to agree with Tierfrund...14" or 15" max on an e12. I like the ALPINA look too, though they are now quite common, and I would prefer them 14".
Then again, I like steelies, and just paid a good amount to re-finish a set of 13" for my Skoda, so maybe I'm not one to talk...!
Of the two, I think you did make the right choice...