About a year ago I bought a set of tire inserts, as I got tired of looking for something good and reasonable, at first I was hesitant but later as I put them I was convinced it's the way to go, biggest advantage is that you can use any tier with these inserts and they look cool, the ones I got 14"x 2" width, in my opinion it looks the best for our sl's any wider looks too much. the only negatives thing about these inserts is that they have these not so attractive raised prints on them that I not crazy about.
If I get a chance next week I'll put up an image of the white wall tire on the forum.
you can check it out on eBay from the seller that I got mine, auction # 270472217861
cheers
Shaun