I say if you are willing, and can handle the training of a mustang then go for it. I think my mare would be great
for any speed events. And she has the heart to do it as well. But be careful mustangs aren't like domesticated horses, they have a very different temperament They are NOT push button horses, and are stubborn, and most of the time set in there ways(if that makes any sense.) It takes a bit more persestance and time to get something
Stuck in there head. They don't accept much until they really trust you.however they bond well with their owners and once bonded, become very attached to that person. Highly intelligent with an innate sense of self-preservation, they are not prone to put themslves into any situation which may be destructive or dangerous. I hope this helped. And good luck! I know I ramble.