My wife has a '17 Trax, and I ALSO work in IT... what a coincidence.
The reason the mounts are the same for the Trax is that it's built on the same chassis as the Spark (Sonic too). The Trax engine however is a different family, meaning you'd have to figure out all the myriad of things that are different vs. the Cruze motor which is roughly the same bottom end (exceptions noted in previous posts), so in theory should be able to accommodate either Cruze or Spark mounts as their positions on the block would be the same.
What I have found from my own light research is that the MAP sensor across the 1.4 in our cars appears to be able to read boost from the factory.. oil pan is different between cruze + spark... cruze is DI vs SFI on the spark, and the CR's are different. It's very likely that you COULD bolt on the cruze 1.4 turbo + all its associated lines to the spark 1.4, AND HPTuners now supports the spark so you CAN tune the PCM for it. Mostly I'm waiting on my warranty to expire so I can play
