If we could never mention the previous one again we'll all live happier, more productive lives.
Seriously, that was one of my oldest surviving skeletals, and it was in dire need of a rework I'm afraid (the original version was done in the late '90s, and in 2003 all I did was create a rigorous version, I didn't rework the anatomy.../shudder).
You are right, Aucasaurus appears to have been quite a speed guys for a medium-sized abelisaur.