Hmm didn't see this thread before.
At one of the future track events,I'll try to get some audio samples from some of the Elises/Exiges at TWS. My audio has an external mike and a very loud gain. Unlike semi-standing starts the cars will be in 3rd gear with an exit speed >65mph CCW or 20mph faster CW. The banked oval/high speed main straight resonates sound back thru the stands/paddock area like an amphitheater. Hope not too many Z06's show up to drown out everything else.
I should have done this back in June when there was a variety of Von Hep,Arqrays,Stage II's on parade.