The second law of motion is F=m*a (F=ma). You ALWAYS have to write them letters and numbers well, else you crash the poor Mars Climate Orbiter and future Muskanian Mars missions.#1 I know what F= MA stands for so you aren't really saying anything new.
#2 I'd rather have safety and protection over higher acceleration.
#3 I remember asking about ownership of said vehicles. Through a lengthy physics diatribe, I think that was lost. I own and have owned: do you?