Carlzxcv,
Your grasp of the simplest racecar Mechanics is clearly lacking.
It is fairly well accepted in FS/FSAE that a Team choosing a small engine can more than compensate for the lack of power by having very high lateral acceleration. It is an approach that has worked well for many (Globally!) winning Teams.
But your lack of Mechanical commonsense is quite common.
~o0o~
What worries me more is this:
Bemo,
In Option-3 there very obviously are "Frame Members*" that provide a "properly triangulated" load path from the "lower end of the Main Hoop Braces" down to the "node where the lower Side Impact Member attaches to the Main Hoop".
(* "NOTE: Each of the above members can be multiple or bent tubes provided the requirements of T3.5.5 are met.")
Not obvious???
Z