I think it would be fairly simple to put a low drag passive fresh air system in; with the intakes in a high pressure or high velocity zone, and the exhausts into the trailing fascia (unless the engine exhaust is there, which it may well be...)
The front suspension is inside the wheel -- probably a trailing arm? The rear suspension is a trailing arm (that is also a cog & chain case) and the structural tubes pivot in two large diameter bearings on the inside end, and there is a spring/shock unit there. So all the wheel travel is provided by trailing arms; and there is no vertical motion in the horizontal airfoil struts that join the wheels and the chassis.
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