http://cgi.ebay.com/ebaymotors/LICENSE-PLATE-BRACKET-mercedes-benz-S320-95-99-front-96_W0QQitemZ330179327979QQihZ014QQcategoryZ50451QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
You might try calling these guys, they sell aftermarket ones for many models on ebay...perhaps they have the correct one for your car. I ran into the same trouble when I bought my E300 but a helpful board member gave me one and saved me the trouble of tracking one down.