I doubt its a rotary... just a normal 2 stroke. The sound on the video is just fucked up. When the car gets farther away the sound clears up and is sounds normal. A well setup RC Drag car either electric or Nitro will move out like that.
Yeah, doesn't sound like a Rotary. But the audio is so bad it really is hard to tell. Scale Rotary engines sound ALOT like full size ones. O.S. Engines made one at one point.
0-100mph+ in 132ft for the really fast ones. Electric dominates once again though.
They do make rotary engines in that size and they can sound like that.
When I was a kid I used to go to all sort of RC car meets and races and such. Even back then the drag cars were insane.