Well, horrible is a bit excessive. You can have a look at what you like to install :
ForMyMercedes.com
To have an idea if the new wheels will fit : Will they fit.com
On my B200T I have installed 215/40ZR18 on 8.5" rims. (55 Offset)
My best advice to you, find MB wheels you like there's plenty of choice to made from and try to stay within the 3% of original wheel ratio (Speedo error).
Good luck
ForMyMercedes.com
To have an idea if the new wheels will fit : Will they fit.com
On my B200T I have installed 215/40ZR18 on 8.5" rims. (55 Offset)
My best advice to you, find MB wheels you like there's plenty of choice to made from and try to stay within the 3% of original wheel ratio (Speedo error).
Good luck