I think they look best with the fender just slightly over the top of the tire. Yours is not drag-race, but the same applies to your road-race inspired look for a BMW. I used Afco double adjustable shocks all around and controlled bump with custom made stops to limit downward travel to about 1". I presume that with a road-race style car you're going to be using stiff springs, so i would also think that about 1" of downward suspension travel prior to hitting the bump stops would be plenty. If you do decide to adjust this make sure that you use a conical shaped bump-stop that will gently introduce a heavier rate to slow bump travel. I would think something like this would look much nicer then the factory BMW wheels when approaching a road-race inspired look: I would also go for a satin finish rather then a polished finish. Bilstein is pretty much entry-level street performance stuff, might consider Afco or Penske if you plan to ever complete with this car, or if you want something that is adjustable in a sense that the adjustments you make actually result in a change in feel, in other words if you prefer to spend money once.