Carshape influence on performance, fact and fiction

There has been some talk lately about some carshapes have outright performance advantages at some tracks.  This is not true.

What is true is that the footprint of a carshape relative to the 'origin' of the car (which is sort of at the center of the spinner) can have minor balance impact due to a bug in rFactor.  The better centered the shape, the less significant the bug.  All of our cars have extremely little 'inaccuracy' due to the bug, as they are all centered well.  But they are not identical, so there is a slight balance variation.

What is not true is that the track width of the source shapes (like wide for 88s and narrow for FIS/thebes) makes any difference at all.  The track width that your team owner chose does make a difference, but that has nothing to do with carshape.

What is not true is that there is any aerodynamic difference at all between carshapes.  This is completely not true.   The only difference in aerodynamics is the formula choices your team owner picked (diffuser, front wing), and has nothing whatsoever to do with carshape.