I think I'm reaching too high

CPP is not all that transparent with previous admission stats.

https://www.cpp.edu/aboutcpp/calpolypomona-overview/facts-and-figures.shtml

While last years’ frosh had 3.41 HS GPA, engineering majors were impacted and therefore more competitive than the school overall.

Last year’s decision thread:

does not appear to mention any mechanical engineering applicants.