I know that a rotory engine can withstand a ton of RPM's in a 1:1 car 8 k plus. ( not much for TQ though). be interesting to see one on a 1/10 onroad car.
Several years ago, there was one that had a Wankel shoe-horned into it, in CarAction, if memory serves. I'd have to go thru all my old magazines, but I know I've seen it in there. Course, they didn't drive it; they just took pictures of it.