Automotive Eng here are the requirements:
We require 6 grade 12 U/M courses including:
The anticipated admission average is expected to be 78-82%.
OUAC Code: MAT
Bachelor of Technology from McMaster University
Advanced Diploma from Mohawk College in Mechanical Engineering Technology
Business Management Certificate from Mohawk College
Co-op: Mandatory - 12 months, 3 terms
No supplementary documents required for admission.
Application Deadline for Fall 2018 intake: January 16th, 2019
Target Enrolment: 240 students
The following are the minimum Grade 12 U and M requirements:
Completion of additional U or M courses to total six courses
The Faculty of Humanities strongly recommends that you select at least one Grade 12 U or M course from Humanities subjects (Art, Drama, English, French, Français, other languages, History and Music). Note: In addition to Requirement 1 above, Biology U is strongly recommended for students planning to enter a Cognitive Science of Language program.
Yes, Humanities would be easier to get into admission-wise. You would need the pre-requisites for Engineering as you mentioned. Physics being one of them. You could switch to apply for getting into Engineering, but most Humanities courses wouldn't overlap with Eng courses. The Eng 1 program is quite structured.