[HatchBatch]

Thanks, I’ll try to get a better picture of the front air dam soon as I have an oil change planned. Then I can also try to assess the belly pan potential a little more. I do agree that GM seems to have done a decent job with aero, the headlights are largely sealed tight to the fascia and hood, the factory air dam looks reasonably useful. The big RS grille seems like overkill from a cooling perspective though. I am thinking of blocking the majority/all of the main black grill, as there is stil a small opening at the bottom and the other grill piece by the hood line.

And interesting thought on the spoiler, I don’t think I want to chop up the stock unit yet, but I may keep a kammback in the back of my head. My fear is that just deleting the spoiler alone could cause more issues, if the spoiler is acting as a cleaner separation of the air flow from the roof. Even lower trim Cruze hatch backs have a small spoiler here, that why I think it may have that function.

One way to find out, test! Just gotta organize a plan and figure out when I have time for these things.