Supposedly a Hellcat ran a 9.70 @ 137 MPH against a GTR within the last two days.
The Hellcat had "stuff done to it". The GTR owner is claiming the Hellcat had a tune (which isn't possible right now apparently) and the owner had lightened it and "tweaked the suspension".
Story is developing...
Update:
Evidently there were several other Challengers there. It's possible this was not a Hellcat but a very modified, non Hellcat Challenger.