RE: Is Traxxas using drill motors?
Kinda. But with brushed, remember thare are a lot of exceptions to those rules, a given type of motor can be unique depending on its design.
With brushless, the rules are more applicable, especially across a 'family' of motors. ie. the Castle CM36 family 4600KV, 5700KV, 6900KV, 7700KV, and 9000KV motors.