I have a 2007 A4 S-line Special Edition TDI and want to do something with the rear badges. I have the 2.0 TDI Quattro Badge and the A4 badge as you would expect. I don't want to go around badging it up as something its not (seen a few of these with RS4 badges on) and i don't like the totally de-badge look or totally de-badge the car. What do you think something like S4D would look like (S4 badge with the D from the 'TDI'?). Its a shame Audi didn't do some special badges for the special edition, like a black s-line badge or similar. I've seen Black (instead of red) S4 badges on ebay but I think they'd look a bit saxo and won't match the standard font or colour of the 'D'.