I am proposing the following changes:
1) Inlet Air - Use of left turn signal in bumper. Using the stock location or fog lamp location does little for performance but fills up the air filter with rubber and sand. It is not about "ram air", but protecting my motor.
2) Allow use of Lexan for side windows. This would allow the installation of a naca duct. Even with a cool suit, I need air flow. Being in the south, our cars easily exceed 110+ inside the car. Cost to replace my windows using one small sheet from Lowes, $20 (low cost)
3) Removal of spare tire well regardless of year of vehicle, the ease of removing a transaxle is worth it. Allow sheet metal to be placed over the opening, identical to how we cover the air intake in the front.