Sorry,but I don't understand. What's PTM mode? How does computer control throttle?
Thanks to Road & Track, we have a excellent PTM video. Tommy Milner, driver of one of Corvette Racing C6.R's previously, and now on the the C7.R, demonstrates the system on a C6 2013 ZR1. The PTM system is even more advanced on the C7, computer modulating so many ECU, traction management, eLSD, and other systems, all simultaneously, adjusting all those those component parameters on the Z-51 C7 83 times every second.
The problem with all current high performance sports cars is that they have so much power, that they can spin their rear tires at will, which while looking impressive, is a very slow way to accelerate, run a track lap, etc. The key is to use have the computer selectively adjust all those systems, again 83 X every second on the StingRay, so that you get maximum usable torque, spinning your wheels only when that is actually useful for street or track performance, transferring power into acceleration and/or driving you through and out of a turn efficiently, rather than tire smoke or needless, mostly time-wasting, side-slipping.