Got it.@Bikeman315 I think they're responding to what I found in the RHD Mach 1 brochure. It says ACC is standard.
So either the brochure or the order guide is incorrect. If Mach 1 has ACC then it seems that ACC doesn't necessarily need to be optional from a hardware standpoint.
However as someone in the tech industry, software has value so not commenting on that. And even with the same sensor, adding ACC might require extra things to work.
Only thing I'm trying to highlight is that certain aftermarket grilles might not work with 2021 as copilot 360 is now standard, and might need sensors that would be blocked by them.