The new car is actually very similar in siloette to a parma alfa (if you look at both bodies from the side) only differences are that the 3.0 win is slightly further forward and higher up, and that the parma is sligher more square up front but lacks the spliter that continues up around the wheel wells. Also the lines that go from the sides up of the hood up through to the top of the windsheild should catch some air as well. But the actually cabin is as i said before the same side profile as a parma, but the top is a litte more rouned and narrorower at the top.
And as far as does one run? Does it really matter? I dont see any BMW 3 series sedan bodies, or a real racing versin of the vaxual or SEAT or anything minus the alfa (which the bodies that rc companies make are based off the older version that doesnt currently run) that is run in major touring car series.