Regarding the thrust powered vehicle being disruptive on the starting lane - maybe not. Assuming the Corvette in discussion is powered by a turbojet, not a rocket, it would be no more disruptive than Vesco's liner while "idling" at the start line. Maybe that is still too much disruption.
Pushing the idling Corvette away from the start line, it would be able to "light up" to full power farther down the course where the jet exhaust would not be disruptive.
It's still probably best to run the thrust-powered vehicle at a private event until this aspect can be sorted out through actual observation. Maybe the WoS officials could send an observer.