Noted in the breeding of Bettor Downunder the 3yoF who rated 1.55.9 for 2240m winning the last at Melton - her 2nd dam unraced Norwood Topsie by New York Motoring was the first and only named progeny of the 3rd dam who was a half sister to It's Motor Power by New York Motoring. If Norwood Topsie had not replicated the 'motoring' of her uncle, she might not have been sent to the breeding barn and this line could easily have stopped right there (she was also out of a Windshield Wiper mare so that may have been enough to warrant a shot). Not too many of the mares in this line going back to the progeny of 4th dam Gyressa, have been persisted with either but I would not be surprised if it becomes an arm of the N23 family that blooms in the future and yet it nearly might not have been
If you dig far enough you find that Bettor Downunder's 8th dam was the 4th dam of Stanley Rio, Stormy Morn and Thor Lobell- not a bad trifecta (sorry but I love this stuff)