I'm surprised no one has mentioned it yet, but in addition to the rear wing, might want to source a nismo V2 (smaller flatter front lip than V3) or V3 front bumper (OEM nismo 07+) and then try to get your hands on OEM nismo sides and rear bumper. I wonder if they would consider it OEM aero and not add any points?

 

NASA considers anything that isnt standard a modification and therefore points....so running a Nismo body kit is the same points as running a truly functional aero kit.

 

200-300lbs of pressure between 80-120mph. That's the wing alone, without any complex interactions with a vehicle body.

As for the comment about the Z not being able to create a measurable amount of downforce. Of course it won't compared to a race car, but 1000lbs on a production vehicle is a relatively huge value. Even the most race-like production cars generate a value around 2000-3000lbs at speeds over 160mph. At more pedestrian speeds, that value is probably closer to 1200-1500lbs. So an off-the-shelf wing that can produce 200-300lbs is hardly bad at all, considering its capable of generating around 20% of the maximum achievable value.