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There is a lot of fully-machined goodness in the back of the car. Quick releases are used to attach the carbon fiber diffuser to the car. The two mounting brackets which the rear suspension control arms attach to appear to have multiple mounting hole locations to tweak the geometry.
Remember those scoops in the bodywork to feed air to the engine? Here you can see the massive air duct going from those scoops to the air box of the engine. The air box is covered in gold reflective tape to prevent heat transfer by radiation from the hot bits in the engine bay heating up the air going into the engine. The rear axle appears to have temperature tape on both ends of it; it’s a curious feature as I’ve never thought of tracking the temperature of those components. However, I can see how operating at excessive temperatures can cause failures of the joints, so monitoring their temperatures can be a good idea. The side of the axle going into the differential is toothed in order to measure shaft speed. Running just inboard of the rear wheel is a flat body panel which I assume is to keep the air flow as clean as possible. Peeking beyond that, you can see the pushrod going from the bottom of the spindle up to the bell crank of the inboard mounted shock system. A rod attached to the rear of the bell crank goes to the blade type adjustable anti-roll bar.
More quick release goodness can be seen connecting the diffuser to the chassis. My guess as to the rear vertical lip on the diffuser is to add stiffness to the part though it may also serve an aero purpose like a wickerbill.
The vertical plates in the diffuser have some curve to them and you can bet it’s for a purpose.
Here is a view of the rear of the car, just because.
Lots of mesh on those front openings… Now that I think of it, the fins of the A/C condenser on Project S2000 are a bit dinged up reducing airflow to the radiator. Adding mesh to any heavily tracked car is probably not a bad idea.
